Commander NiallCastle Sol boss and gatekeeper to the Haligtree Secret Medallion (Left)
Commander Niall is the major boss of Castle Sol in Elden Ring. He begins the fight with two spectral knights, then adds powerful lightning and frost attacks that punish close-range aggression.
Role
Castle Sol boss and gatekeeper to the Haligtree Secret Medallion (Left)
Status
optional major boss
Importance
supporting
Elden Ring · character art
01
Key takeaways
These are the decisions that have the greatest effect on the difficulty of the Commander Niall encounter.
01
Control the opening
The two spectral knights are the main reason the arena becomes chaotic. Either defeat them methodically, separate them from Niall with movement and terrain, or use a control option such as a Bewitching Branch if your build has one available.
02
Do not trade through the aura
When Commander Niall surrounds himself with frost, close-range attacks become a poor exchange even if you can reach him. Back away until the effect has passed, then return after a committed attack creates a clear opening.
03
Treat the second phase as a spacing check
The lightning-charged leg and frost attacks make staying directly beside Niall unreliable. A medium-distance position gives more time to react while still allowing a punish after his leap or broad sweep.
04
The boss is optional, but the route is valuable
Commander Niall is not required for the main story. Defeating him is important for players seeking the upper Castle Sol area and the route toward the Haligtree Secret Medallion (Left).
02
Commander Niall overview
Commander Niall is the optional boss at the end of Castle Sol, a fortress in the Mountaintops of the Giants. His encounter is built around temporary spectral allies, area-denial attacks and a dangerous second phase that makes careless melee trades especially costly.
Commander Niall is found in Castle Sol, a late-game legacy dungeon in the Mountaintops of the Giants. The castle can be explored before this fight, but the boss is positioned as the dungeon's main combat checkpoint: defeating him opens the way to the upper section behind the arena and allows the player to reach the part of Castle Sol associated with the . The fight is therefore optional for the main ending path but important for players pursuing the Consecrated Snowfield route and the content beyond it.
The encounter begins unusually because Commander Niall is not immediately alone. He calls two spectral knights into the arena, with one using a sword and shield and the other wielding paired blades. These summons are not background hazards: they can surround the player, interrupt attacks and create openings for Niall's slower but highly damaging attacks. The practical problem is deciding whether to eliminate them, control them with a special item or exploit the boss's behaviour while they are still present.
After the spectral knights are dealt with, Commander Niall becomes easier to read but not safe to approach. His attacks combine heavy physical strikes with lightning and frost effects, and his large sweeping movements cover more space than his apparent speed suggests. In the later portion of the battle he can create a frost-laden area around himself, launch himself across the arena and use a lightning-charged prosthetic leg. Rolling away from every attack is not enough; the player must identify which animations are safe to punish and avoid standing in lingering frost.
The fight matters most to players who want the Haligtree route, but it also tests several skills that are useful throughout Elden Ring's late game. It rewards target control, patience around delayed attacks and awareness of status buildup. Ranged builds can create distance while the summons are alive, whereas melee builds generally benefit from removing or disabling the spectral knights before committing to Commander Niall himself. His distinctive feature is that the first phase is effectively a layered encounter rather than a straightforward duel.
The safest general plan is to enter with a way to separate the summons from Niall, then focus on one spectral knight at a time or use a control option to turn the opening against him. Once the arena is less crowded, stay near the edge of Niall's effective range, bait a committed attack and punish only after the animation has finished. The fight becomes much more manageable when the player treats the frost aura and lightning leg as reasons to reset spacing rather than attempting to trade through them.
Commander Niall's defeat is not required to complete Elden Ring, and the encounter does not function as a conventional quest with branching dialogue or a choice that permanently changes an allied character. Its lasting significance is geographical and collectible: the victory removes the boss barrier in Castle Sol, while the reward and the accessible upper area support different forms of late-game progression. Players who only want the main story can postpone him; players seeking the Haligtree should plan to return before treating the Mountaintops of the Giants as complete.
03
Encounter progression
ApproachReach the Castle Sol boss arena
Opening controlManage Commander Niall and two spectral knights
Solo bossFight Niall after the summons are removed or neutralized
After the victoryExplore the newly accessible upper Castle Sol area
2Defeat or control the spectral knightsencounterThe encounter starts with two summoned knights supporting Commander Niall.
●Defeat Commander NiallbossThe fight becomes a direct boss encounter once the summons no longer control the arena.
4Reach the upper Castle Sol areaprogressionThe victory allows progression beyond the boss arena toward the Haligtree Secret Medallion (Left).
Commander Niall is the Castle Sol gatekeeper for the upper fortress route.
04
Requirements and preparation
There is no known mandatory quest prerequisite for entering Commander Niall's arena, but the encounter is positioned in a late-game region and benefits from preparation for crowd control, frost buildup and lightning attacks.
RequiredReach Castle SolTravel to Castle Sol in the Mountaintops of the Giants and make your way through the fortress to the boss arena. The fight is not part of the critical path, so it can be postponed if the region's enemies or the boss's damage are overwhelming.
RecommendedHave a plan for two summonsBring a strategy for the spectral knights before entering. A strong single-target weapon, a reliable ranged option, a Spirit Ash or a can prevent the opening from becoming a three-on-one melee exchange.
RecommendedPrepare for frostCommander Niall uses frost-producing attacks and can leave a dangerous area around himself. Use available frost resistance or status-cleansing options if your build has them, but do not rely on resistance alone; leaving the affected area is the primary response.
RecommendedKeep healing availableThe summons and Niall can punish a failed roll in quick succession. Enter with enough healing and resources to survive the opening rather than spending all consumables while clearing Castle Sol.
OptionalDecide whether to pursue the medallion routeIf your goal is only the main story, this optional boss can wait. If you want to reach the Consecrated Snowfield and related late-game content, plan to defeat him and search the upper area of Castle Sol afterward.
05
Encounter phases
Spoilers
Story spoilers ahead. This section covers the character’s later arc and outcomes.
1
Opening: Commander Niall with spectral knights
Starts: The fight begins when the player enters the boss arena.
Not stated; exact health and scaling vary by game conditions and are omitted.
Commander Niall summons two spectral knights at the start. One carries a sword and shield, while the other uses paired blades and applies faster close-range pressure. Niall may remain threatening while the knights occupy the player, so the first priority is to prevent all three enemies from attacking together.
Sword-and-shield spectral knightTell The knight advances behind its shield and commits to close-range swings when the player is occupied.Answer Circle away from Commander Niall, isolate the knight and punish after its attack finishes instead of striking into the shielded approach.
Paired-blade spectral knightTell The dual-wielding knight closes distance more aggressively and can string together several attacks.Answer Prioritize space and single-target damage; avoid being pinned between this knight and Niall, and roll through the final part of a committed sequence rather than panic-rolling early.
Commander Niall's opening pressureTell Niall's heavy movements and wide attacks become difficult to read when both spectral knights are active.Answer Use the arena's space to split the enemies, or disable a summon before committing to damage on Niall.
A controlled opening is more valuable than immediate damage on Commander Niall. If the summons remain active, every attack against Niall risks being interrupted by a knight from outside the camera's focus.
If using a Spirit Ash, allow it to draw one enemy away while you focus on the other rather than standing in the centre of the arena with every target nearby.
2
Later encounter: Commander Niall empowered
Starts: The later portion begins after the spectral-knight pressure has been removed and the fight advances.
Not stated; no unsupported phase threshold is provided.
Commander Niall becomes more dangerous when he activates his lightning-charged prosthetic leg and frost-based attacks. His movement and area coverage make the end of an attack sequence more important than the beginning: wait for the full animation before moving in.
Lightning-charged prosthetic legTell Niall raises or charges his prosthetic leg before delivering a powerful kick or leap-based attack.Answer Create distance when the leg becomes charged, then punish the recovery after the attack lands. Do not remain directly beside him expecting to roll through every follow-up.
Frost aura and ground effectTell A cold effect gathers around Niall and can build frost on a player who stays close.Answer Leave the affected area immediately and wait for the effect to clear. Ranged attacks can keep pressure on him while melee players should re-enter only after the frost hazard is no longer controlling the space.
Sweeping halberd attacksTell Niall uses broad weapon swings that cover the space around his body and can catch a late approach.Answer Roll toward a safe side or away from the full sweep according to your position, then use the recovery rather than attacking during the widest part of the motion.
Leaping attackTell Niall launches himself across the arena, making a previously safe distance suddenly dangerous.Answer Watch his body rather than the weapon alone, roll as he commits to the landing and punish only after confirming that the follow-up has ended.
The later portion is won by reducing unnecessary contact. One safe punish after a complete attack is preferable to several hits that leave you inside the frost effect or in range of the prosthetic leg.
If frost buildup is already high, disengage instead of trying to finish the boss. Surviving the reset preserves the opening you created and prevents a missed status threshold from turning into a defeat.
06
Boss encounter strategy
Spoilers
Story spoilers ahead. This section covers the character’s later arc and outcomes.
Exact health is omitted because it depends on game conditions, scaling and difficulty modifiers.
At the start, move laterally and avoid allowing Commander Niall and both spectral knights to converge on your position. If you are using melee, choose one knight and finish it while keeping Niall on the edge of the camera; the paired-blade knight is the more immediate mobility threat, while the shielded knight can obstruct attacks and occupy space. A Spirit Ash can divide the encounter, and a Bewitching Branch may provide a way to turn the opening into a temporary advantage if you have one available. Once the summons are no longer dictating the fight, bait Niall's broad weapon swings or leap, evade the complete animation and strike during recovery. When the prosthetic leg charges or the frost effect appears, retreat rather than attempting to out-damage the hazard. Ranged attacks are strongest when Niall is recovering or when frost makes melee contact unsafe; melee attacks are strongest after a clean dodge that places you outside the next sweep. The arena is won through repeated short punish windows, not by remaining under the boss continuously.
Weaknesses
Commander Niall can be pressured after the recovery of his committed attacks.
His summons are vulnerable to being separated, focused down or affected by suitable control tools.
The frost aura is a positional weakness: leaving it removes the hazard and creates a safer reset than trading inside it.
Travel to Castle Sol and clear or bypass the fortress until you reach the boss arena entrance. The dungeon contains regular enemies and cramped approaches, so conserve healing and ensure your flask resources are not exhausted before crossing the fog or entering the encounter.
Location: Castle Sol, Mountaintops of the Giants
TipActivate the nearby Site of Grace so a failed attempt does not require a full run through the castle.
Watch outThe boss fight itself is optional; do not mistake reaching Castle Sol for committing to the Haligtree route.
02
Avoid being surrounded during the summon opening
Enter and immediately create space
When the fight begins, do not lock yourself into a stationary exchange with Commander Niall. Move toward open ground and keep all three enemies visible as much as possible, because a spectral knight attacking from outside the camera can interrupt an otherwise safe punish.
Location: Commander Niall's arena
TipLateral movement is more useful than repeatedly rolling backward, which can leave you against the arena boundary.
Watch outAllowing both knights and Niall to stand within melee range is the fastest way to lose control of the encounter.
03
Reduce the number of active threats
Choose a summon-control plan
Decide before attacking whether you will kill the spectral knights, divide them with a Spirit Ash or use a Bewitching Branch where appropriate. The goal is not necessarily to damage Niall first; it is to stop the opening from becoming simultaneous pressure from a shielded knight, a paired-blade knight and the boss.
Location: Commander Niall's arena
TipA summon that occupies Niall can be more valuable than one that only deals damage, because it gives you time to finish a spectral knight without being forced to trade.
Watch outDo not spend a control item casually if it leaves you with no answer to the remaining knight and no healing for the later phase.
04
Clear the opening summons
Remove or neutralize the spectral knights
Focus one knight at a time while circling away from Niall. The paired-blade knight closes and attacks more quickly, while the sword-and-shield knight can block direct approaches; isolate whichever one is currently cutting off your escape route, then reposition before the next target reaches you.
Location: Commander Niall's arena
TipShort attacks after a knight's committed animation are safer than long combinations that keep your character rooted when Niall approaches.
Watch outTrying to finish both knights with wide attacks can still leave you exposed to Niall's area coverage; confirm your escape path before committing.
05
Establish a repeatable punish window
Bait a committed Commander Niall attack
After the summons no longer control the arena, remain just outside the range of his broad weapon swings or leap. Evade the attack as it commits, watch for the complete follow-up and then strike during the recovery rather than attacking the first moment the boss begins to move.
Location: Commander Niall's arena
TipOne or two safe hits are preferable to a full combo if your weapon's recovery would keep you in range of the next sweep.
Watch outA successful first dodge does not always mean the attack string is over; attacking before the animation finishes can turn a good opening into a trade.
06
Avoid frost buildup and area denial
Retreat from the frost effect
When Niall creates frost around himself or on the ground, leave the affected space and wait for a clear approach. Ranged players can continue attacking from outside the hazard, while melee players should circle at a safe distance and return only after the effect stops controlling the floor.
Location: Commander Niall's arena
TipResetting your position also lets the boss finish his animation away from you, producing a cleaner recovery window.
Watch outDo not stay beside Niall simply because he is within weapon reach; frost buildup combined with a follow-up strike can defeat a player who would otherwise survive the individual hit.
07
Survive the empowered attack pattern
Evade the charged prosthetic-leg attacks
Watch for the lightning charge on Niall's prosthetic leg and prepare for a forceful kick or leap across the arena. Move away as he commits, roll at the correct moment for the landing or impact and wait for the recovery before returning to melee range.
Location: Commander Niall's arena
TipMedium spacing gives you more reaction time than standing directly under the boss, while still keeping you close enough to punish a missed leap.
Watch outRolling too early can place you in the path of the landing or the next movement; keep watching Niall after the first evade.
08
Collect the post-boss progression reward
Finish the boss and search the upper fortress
Continue alternating between distance, complete evades and short recovery punishes until Commander Niall is defeated. After the victory, use the newly available route beyond the boss area and search the upper section of Castle Sol for the progression item connected with the Haligtree route.
Location: Upper Castle Sol
TipDo not leave immediately after the victory if you are pursuing the Haligtree Secret Medallion (Left); the boss reward and the item found beyond the arena serve different purposes.
Watch outThe medallion piece is not the same thing as Commander Niall's remembrance-style boss reward, so check the upper area separately.
08
Pre-fight checklist
Reach the Commander Niall arena from the Castle Sol Site of GraceThis reduces the cost of repeated attempts and avoids re-clearing the whole fortress.
Choose how you will handle the two spectral knightsPlan to isolate, defeat, divide or control them before entering.
Equip a dependable single-target damage optionA focused weapon or spell helps remove one knight without extending the crowded opening.
Bring a Spirit Ash if your build uses summonsUse it to divide enemy attention rather than letting every target converge on you.Optional
Carry a Bewitching Branch if you intend to use enemy controlIt can provide an alternative to immediately fighting both spectral knights, but do not rely on an item you have not tested or do not possess.Optional
Prepare for frost buildupResistance or cleansing can help, but leaving the frost area remains the most important response.
Keep healing and ranged resources for the later phaseSpending everything on the spectral knights can leave no margin for Niall's lightning and frost attacks.
Decide whether you are pursuing the Haligtree routeThis determines whether you should fully explore the upper section after the boss dies.Optional
09
Weaknesses and damage
Spoilers
Story spoilers ahead. This section covers the character’s later arc and outcomes.
Weaknesses and damageSpoilers
Strengths
The opening three-enemy formation overloads the player's attention and makes camera control a serious problem.
Commander Niall's broad swings, lightning leg and leap can cover escape routes that would be safe against a slower single-target boss.
The frost effect punishes players who remain close after an attack, so constant melee pressure is less reliable than deliberate spacing.
Weaknesses
The spectral knights can be isolated or neutralized, removing the encounter's greatest numerical advantage.
Niall's long committed attacks create clear recovery windows for both melee and ranged builds.
His frost effect can be avoided by leaving the area rather than trying to endure it, turning repositioning into a dependable defensive answer.
A control-focused opening can be more effective than raw damage because it prevents interruptions and gives the player a clean target.
Best uses
Melee builds perform best when they clear or disable one spectral knight, then punish Niall only after a completed sweep or leap.
Ranged builds benefit from the arena's open space and can maintain pressure while avoiding the frost area, but must still watch for Niall's sudden leap across distance.
Summon-based builds should use their ally to split attention and preserve a safe line of retreat; a summon that draws every enemy into one cluster may reduce visibility instead of improving it.
Players deciding between aggression and safety should favour repeated short punishes. The fight rewards surviving the reset after each attack more than forcing a larger damage window.
10
Failure conditions
Spoilers
Story spoilers ahead. This section covers the character’s later arc and outcomes.
Being surrounded at the startIf Commander Niall and both spectral knights converge, attacks can arrive from different angles and interrupt healing or weapon recovery. Reposition immediately instead of trying to win a three-target trade.
Ignoring the paired-blade spectral knightIts faster close-range pressure can close the distance while attention is on Niall. If it is repeatedly reaching you, make it the next target or use a control tool to remove its pressure.
Attacking inside the frost areaRemaining close while frost accumulates can turn a successful punish into a status problem followed by a heavy hit. Leave the hazard and wait for the next safe approach.
Rolling before the attack commitsEarly rolls can finish before the lightning leg, leap or broad sweep reaches its target. Watch the movement through impact and save the next attack for the recovery.
Using all resources on the openingA player who spends every heal, control item or ranged resource against the spectral knights may reach the solo phase without enough margin for error. Preserve at least some resources for Niall's empowered attacks.
Leaving Castle Sol before collecting the route itemDefeating Commander Niall opens progression but does not automatically place the Haligtree Secret Medallion (Left) in your inventory. Explore the upper Castle Sol area after the victory if that item is your objective.
On failure
The fight can be retried from the nearby Castle Sol checkpoint, but defeated enemies and spent resources are reset when the player returns after death.
11
Rewards and drops
Spoilers
Story spoilers ahead. This section covers the character’s later arc and outcomes.
Commander Niall's boss weapon reward. It is a prosthetic-leg weapon that reflects the boss's lightning-based fighting style and gives players a distinct equipment option after the encounter.
Runes
Defeating Commander Niall grants runes. The exact amount can vary with game conditions, so no unsupported fixed total is given here.
The boss barrier is removed, allowing the player to continue through the upper fortress area. This route leads to the Haligtree Secret Medallion (Left), which is separate from the weapon and rune rewards.
12
Lore
Spoilers
Story spoilers ahead. This section covers the character’s later arc and outcomes.
Commander Niall is presented as a veteran military commander whose identity is expressed through discipline, equipment and the spectral soldiers he brings into battle. His prosthetic leg is not merely a visual detail: the lightning charge attached to it forms part of his signature combat style and distinguishes him from the other commanders encountered in the Lands Between.
The spectral knights reinforce the idea that Niall's encounter is about command as much as personal strength. He does not enter the arena as an isolated champion; he establishes a formation and forces the Tarnished to break it apart. The two knights also contrast with each other through their equipment, giving the opening a visual and tactical division between guarded pressure and rapid paired-blade attacks.
Castle Sol's position in the Mountaintops of the Giants connects Commander Niall to one of Elden Ring's more remote and war-scarred regions. The fortress is tied to the route toward the , so the boss's role extends beyond an isolated reward: his defeat is part of the player's investigation of a hidden path through the late game.
The fight's frost and lightning imagery also fits Castle Sol's severe environment. Niall's attacks make the arena feel like an extension of the fortress's cold setting while the lightning on his prosthetic leg adds a contrasting burst of force. These effects are mechanically important, but they also make the encounter read as a commander defending a strategic stronghold rather than a random enemy placed at the end of a dungeon.
Commander Niall's encounter is one of the clearest examples of a boss fight in Elden Ring beginning with allied summons that must be managed before the boss can be safely isolated.
The two spectral knights are deliberately differentiated by their equipment: one uses a sword and shield, while the other fights with paired blades. This makes the opening readable as a small military unit rather than two identical copies.
Veteran's Prosthesis mirrors one of Commander Niall's most recognizable visual features, allowing the player to carry an item based on the boss's prosthetic-leg motif.
Commander Niall's defeat and the acquisition of the Haligtree Secret Medallion (Left) are separate events in the same location. Players who only check the boss reward can miss the progression item in the upper part of Castle Sol.
16
Commander Niall FAQ
Where do I fight Commander Niall?
He is fought at the end of Castle Sol in the Mountaintops of the Giants. The arena is reached by progressing through the fortress rather than by finding him in the open world.
Is Commander Niall required to finish Elden Ring?
No. Commander Niall is an optional boss and can be postponed if you are following only the main route. He becomes important if you want to access the upper Castle Sol route and pursue the Haligtree Secret Medallion (Left).
Why are there two enemies with Commander Niall?
The boss begins by summoning two spectral knights: a sword-and-shield knight and a paired-blade knight. They are intended to divide your attention, so separating or neutralizing them is usually safer than attacking Niall immediately.
Should I kill the spectral knights first?
For most players, removing or controlling the knights first makes the encounter more predictable. The exact order depends on which knight is blocking your escape, but the paired-blade knight's mobility often makes it the urgent target when it is reaching you consistently.
What should I do when Commander Niall creates frost?
Move out of the frost-affected area instead of continuing a melee exchange. Once the effect has cleared or Niall has finished the associated animation, return for a recovery punish.
How do I respond to the lightning leg?
Back away when Commander Niall charges the prosthetic leg, then roll as the kick or leap commits. Wait for the landing and follow-up to end before attacking, because an early punish can be caught by the next movement.
What does Commander Niall drop?
The boss reward includes Veteran's Prosthesis and runes. The Haligtree Secret Medallion (Left) is obtained separately in the upper Castle Sol area that becomes accessible after the encounter.
Can I return for the medallion after defeating Commander Niall?
Yes. Defeating the boss opens the route through the upper part of Castle Sol, and you can explore that area afterward to collect the Haligtree Secret Medallion (Left).
What is the safest overall strategy?
Create space immediately, isolate or control the two spectral knights, then fight Commander Niall with short recovery punishes. Retreat from frost and charged lightning attacks rather than trying to maintain constant contact.
coreMalenia, Blade of MiquellaThe route associated with Commander Niall's medallion reward leads toward the Haligtree and Malenia, Blade of Miquella.
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