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Demi-Human Swordmaster OnzeOptional dungeon boss

Demi-Human Swordmaster Onze is an optional boss at the end of Belurat Gaol in Elden Ring: Shadow of the Erdtree. The fight rewards an aggressive, close-range approach and grants the Demi-Human Swordsman Yosh Spirit Ashes.

Role
Optional dungeon boss
Status
Available in Elden Ring: Shadow of the Erdtree
Importance
supporting
Demi-Human Swordmaster Onze
Elden Ring · character art
01

Key takeaways

These are the practical points to know before entering the arena.

01

The encounter is optional

Demi-Human Swordmaster Onze is located in Belurat Gaol rather than on the required main-story route. You can leave the dungeon and return later if the fight is currently consuming too many healing resources.

02

Fight at close but controlled range

Onze's speed makes long, unstructured retreats risky. Stay close enough to see his sword movement, roll through a committed attack, and use the recovery window instead of attacking while he is still moving.

03

Do not heal on instinct

A roll away does not automatically mean the arena is safe. Wait until Onze has finished the sequence or is separated from you by enough space, then heal with stamina available for a second defensive action.

04

The reward is a Spirit Ash

The notable named reward is Spirit Ashes. Players who do not use Spirit Ashes still receive Runes, but the summon is the encounter's most distinctive gameplay reward.

02

Demi-Human Swordmaster Onze overview

Demi-Human Swordmaster Onze is the boss encounter at the end of Belurat Gaol, an optional dungeon in the Gravesite Plain area of Elden Ring: Shadow of the Erdtree.

Demi-Human Swordmaster Onze is a small, highly mobile demi-human warrior who fights with a sword and relies on rapid close-range pressure. Unlike a large field boss, Onze occupies a relatively compact arena, so the encounter is decided less by controlling a broad battlefield and more by recognizing his attack rhythm, creating enough distance to heal, and punishing the recovery after his faster combinations.

The player first meets Onze after progressing through Belurat Gaol. The dungeon route descends through its prison-like interior before opening into the boss arena, and reaching the fog door is itself the main prerequisite for the encounter. Belurat Gaol is optional, so defeating Onze is not required to continue the central story, but clearing the dungeon provides a distinctive Spirit Ash reward that can support later exploration and boss fights.

Onze is dangerous because his small frame and quick movement can make his sword attacks difficult to read at first. His attacks arrive at close range and can catch a player who attempts to heal immediately after blocking or rolling away. The safest general approach is to avoid chasing him around the arena, keep enough stamina for a defensive response, and attack only after a clearly completed sequence.

The reward makes the fight worthwhile for players who use Spirit Ashes. is a named Spirit Ash associated with the encounter, while the Runes provide a general character-progression reward. The available information does not verify a precise Rune amount, health value, attack damage, or a complete attack-by-attack resistance chart, so those figures should not be treated as established data on this page.

03

Route to the boss

Enter the optional dungeonLocate Belurat Gaol in Gravesite Plain
Descend through the prisonFollow the dungeon route toward its lower section
Open the boss approachReach the fog entrance at the end of the route
Defeat OnzeClaim the Spirit Ash and Rune rewards
  1. 1Gravesite PlainregionThe regional starting point for the dungeon route.
  2. 2Belurat GaoldungeonThe optional dungeon where the boss is found.
  3. ●Demi-Human Swordmaster OnzebossThe current boss encounter.

Progress from Gravesite Plain through Belurat Gaol to the boss arena.

04

Requirements

No specific level, weapon, quest, or story prerequisite has been verified for this optional encounter.

  • RequiredAccess to Belurat GaolYou must reach and enter Belurat Gaol in Gravesite Plain before you can follow the dungeon route to Onze.
  • RecommendedA way to survive close-range pressureA shield, reliable rolling, ranged attacks, or a Spirit Ash can all provide a defensive answer, but no single equipment type is required by the encounter.
  • RecommendedHealing and FP preparationRestock before the final approach if the dungeon has consumed resources. The boss is optional, so returning to a Site of Grace is preferable to entering with an unsuitable loadout.
05

Boss encounter

Boss encounter

  • Location
    The boss arena at the end of Belurat Gaol.
  • Health
    Not verified.

Treat Onze as a fast humanoid duelist rather than a target to overwhelm immediately. Begin by watching one or two attack strings so you can identify when his movement has ended; then roll through a committed sword attack and answer with a short attack of your own. Avoid spending the full stamina bar on a long combo, because his speed makes a missed punish dangerous. If you use a shield, reserve stamina for the next hit instead of holding the guard continuously. If you use ranged attacks, create distance only after an attack has finished and stop casting when Onze is already closing the gap. A Spirit Ash can draw his attention, but use the opening for a deliberate heal or single punish rather than assuming the summon will permanently hold aggro.

Rewards

  • Demi-Human Swordsman Yosh Spirit Ashes
  • Runes
06

Strategy

Strategy

  1. 01

    Enter the dungeon and begin the descent.

    Enter Belurat Gaol

    Travel to Belurat Gaol in Gravesite Plain and enter the optional dungeon. The boss is not encountered at the entrance, so begin by following the available prison route instead of searching the first room for the fog door.

    Location: Belurat Gaol

    TipIf the dungeon has already depleted your healing charges, leave and return after resting before attempting the boss.

  2. 02

    Reach the lower part of the dungeon.

    Descend through the dungeon

    Continue through Belurat Gaol's interior and use the route that leads downward toward the lower section. The dungeon's vertical layout can make the return trip confusing, so note the path you used and clear or bypass enemies according to whether you need a safer runback.

    Location: Belurat Gaol

    TipDo not spend all of your healing or restorative resources on every enemy during the approach; the boss arena is the priority.

    Watch outThe exact route can be difficult to reconstruct after a death, so reorient before rushing through the dungeon and accidentally entering the fog with insufficient resources.

  3. 03

    Set up for the Demi-Human Swordmaster Onze encounter.

    Prepare at the final approach

    Before crossing into the arena, select the weapon, shield, spells, consumables, and Spirit Ash you intend to use. Onze's close-range speed rewards a loadout that can perform its defensive action consistently; changing tactics after the fight begins is more dangerous than entering with a simple plan.

    Location: Boss approach in Belurat Gaol

    TipKeep enough stamina or FP for an emergency response after your first attack rather than committing every resource to damage.

    Checkpoint
  4. 04

    Learn the boss's close-range rhythm.

    Read Onze's opening exchanges

    At the start of the fight, prioritize observing the timing of Onze's sword attacks. Roll through or guard the committed strike, then wait for the sequence to end before retaliating; attacking during his approach can trade damage unfavorably because he can reach you quickly.

    Location: Demi-Human Swordmaster Onze's arena

    TipA single safe hit is more valuable than a long combo until you know which recovery windows are genuine.

  5. 05

    Deal damage without losing control of the fight.

    Punish the recovery

    After Onze completes an attack sequence, use a short attack string and immediately return to a defensive stance. Melee players should avoid cornering themselves while chasing him, while ranged players should cast only during the space created by a completed attack or a Spirit Ash distraction.

    Location: Demi-Human Swordmaster Onze's arena

    TipFight near the arena's usable space rather than backing blindly into a wall, where the boss's mobility becomes harder to answer.

    Watch outDo not continue attacking after the safe opening closes; a greedy follow-up can leave you in the path of the next sword sequence.

  6. 06

    Convert the summon window into safe progress.

    Use a summon deliberately

    If you use a Spirit Ash, summon when the arena gives you enough safety to complete the action. Once the summon attracts Onze's attention, use the opening for measured damage or healing, then be ready for his focus to return rather than assuming the distraction will last.

    Location: Demi-Human Swordmaster Onze's arena

    TipThe best use of the distraction is often one heal or one reliable attack, not an entire extended combo.

  7. 07

    Defeat the boss and claim the rewards.

    Finish the encounter and collect the rewards

    Continue alternating between defensive responses and short punishments until Onze is defeated. After the victory, collect the Runes and the Demi-Human Swordsman Yosh Spirit Ashes, then confirm the reward before leaving the arena.

    Location: Demi-Human Swordmaster Onze's arena

    Watch outThe reward is granted for the victory; if you die before the encounter is completed, you must defeat Onze again to obtain it.

07

Pre-fight checklist

  • Enter Belurat Gaol with enough healing resources for both the dungeon approach and the boss attempt.Rest and return if the route has already consumed too many charges.
  • Choose a weapon or spell setup you can use without exhausting your stamina or FP.Onze's speed makes recovery after an overcommitted attack difficult.
  • Keep a defensive answer ready for close range.Use rolling, guarding, spacing, or a summon according to your build.
  • Decide in advance when you will heal.Heal after a completed attack sequence or a reliable distraction, not immediately after every retreat.
  • Equip or prepare a Spirit Ash if you intend to use one.Demi-Human Swordsman Yosh is the reward, not a prerequisite for the fight.Optional
08

Failure conditions

  • The player character diesThe encounter is lost and must be attempted again. Any Runes carried into the fight remain subject to the normal recovery rules after death.
  • Healing is attempted during an active attack sequenceOnze's close-range speed can let him reach the player before the healing animation is safely completed. Create a genuine opening first.
  • The player overcommits to a comboA long attack string can consume the stamina needed for a roll or guard, leaving the player exposed when Onze resumes his pressure.
  • The player retreats into the arena boundaryBacking away without checking position reduces room to respond to fast sword attacks. Re-center when the fight begins to drift toward an edge.

On failure

Belurat Gaol's exact checkpoint arrangement and runback details have not been independently verified in the supplied material.

09

Rewards and drops

Spoilers

Story spoilers ahead. This section covers the character’s later arc and outcomes.

10

Lore

Spoilers

Story spoilers ahead. This section covers the character’s later arc and outcomes.

11

Encounter links

13

Trivia

  • The boss's title and combat style both emphasize sword mastery, distinguishing the encounter from demi-human groups that function primarily as ordinary dungeon enemies.
  • The reward is named Demi-Human Swordsman Yosh, giving the optional fight a named Spirit Ash payoff rather than only a generic equipment drop.
  • Belurat Gaol is optional, so the player can postpone this encounter and return with a different build or more suitable resources.
14

Frequently asked questions

Where do you fight Demi-Human Swordmaster Onze?
The fight takes place at the end of Belurat Gaol, an optional dungeon in Gravesite Plain in Elden Ring: Shadow of the Erdtree.
Is Demi-Human Swordmaster Onze required for the story?
No. Onze is an optional boss, so defeating him is not required to continue the main progression.
What does Demi-Human Swordmaster Onze drop?
The named reward is Demi-Human Swordsman Yosh Spirit Ashes. The victory also grants Runes, but the precise Rune amount is not verified in this article.
What is the safest general strategy against Onze?
Watch his close-range sword sequences, roll or guard the committed attack, and answer with a short punish after the sequence ends. Avoid healing or extending a combo while Onze is still actively closing distance.
Do you need a specific weapon or build?
No specific weapon or build requirement has been verified. The practical requirement is a reliable way to handle fast close-range attacks, such as consistent rolling, guarding, spacing, ranged pressure, or a Spirit Ash distraction.
Can the fight be postponed?
Yes. Because Belurat Gaol and its boss are optional, you can leave, improve your character or change equipment, and return later.
15

Relationships

Location
Rewards

Select any portrait to jump to that relationship

Location
BG

Belurat Gaol

Located in

Demi-Human Swordmaster Onze is fought at the end of Belurat Gaol.

GP

Gravesite Plain

Region

Belurat Gaol is located in Gravesite Plain.

Rewards
DS

Demi-Human Swordsman Yosh

Rewards

Defeating Onze grants the named Demi-Human Swordsman Yosh Spirit Ashes.

Full directory
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