Onyx Lord

Key takeaways

Use the arena and desired reward to decide which Onyx Lord encounter to attempt first.

• There is more than one encounter Royal Grave Evergaol and Sealed Tunnel contain separate Onyx Lord fights. Defeating one does not remove the other from the game.
• Choose the reward before starting The Royal Grave Evergaol version is tied to Meteorite, while the Sealed Tunnel version is tied to Onyx Lord's Greatsword. The reward is determined by the location.
• Do not treat distance as complete safety Gravity attacks can punish a player who simply retreats. Staying mobile and rolling through committed attacks is more reliable than holding a fixed long-range position.
• The fight is optional The Onyx Lord is not a mandatory main-story gate. Players can leave the arena, improve their equipment, and return later if the gravity attacks or greatsword reach are overwhelming.

Onyx Lord overview

The Onyx Lord is an optional gravity-themed boss in Elden Ring. The name applies to encounters found in different locations, so the arena determines both the route to the fight and the reward obtained.

The Onyx Lord is a tall humanoid enemy armed with a large curved greatsword and gravity magic. Its melee reach is the immediate danger, but its gravity spells are what make standing at medium distance unsafe: the boss can pull the player out of position, launch ranged gravity attacks, and punish healing or attacks made without regard for spacing.

Players can meet an Onyx Lord in Royal Grave Evergaol and in Sealed Tunnel. These are separate encounters rather than one boss that changes location. Royal Grave Evergaol presents the fight as an Evergaol battle, while Sealed Tunnel places it at the end of an underground dungeon and ties that victory to a weapon reward.

The safest general approach is to stay close enough to make the boss commit to a visible sword swing, then roll through the attack and punish the recovery. Retreating to long range is not automatically safer because the Onyx Lord's gravity abilities cover space and can interrupt movement. Ranged builds should keep moving laterally rather than backing away in a straight line.

The encounter matters primarily for its rewards and for learning how Elden Ring's gravity enemies control distance. The Royal Grave Evergaol version is associated with the Meteorite sorcery, while the Sealed Tunnel version rewards Onyx Lord's Greatsword. Neither encounter is required to complete the main progression, so players can postpone either fight if its gravity attacks are causing repeated deaths.

Encounter progression

Requirements and preparation

There is no mandatory main-story requirement to defeat the Onyx Lord, but each arena has practical preparation considerations.

• RequiredAccess to the chosen locationReach Royal Grave Evergaol or progress through Sealed Tunnel to the arena. The two locations are separate and do not share a single entrance.
• RecommendedA stamina-conscious loadoutThe boss mixes close-range sword pressure with gravity attacks, so preserve enough stamina to roll after attacking and to escape a dangerous follow-up.
• RecommendedA way to maintain mobilityMedium or longer-range options can work, but the player still needs to move laterally and react to gravity attacks rather than standing still to cast or fire.
• OptionalA backup plan for repeated failuresBecause the fight is optional, returning after upgrading equipment or changing the approach is safer than repeatedly forcing an unfavorable exchange.

Encounter phases and attacksSpoilers

1. 1

   Single combat pattern

   Starts: The fight begins when the player enters the arena or crosses the boss trigger.

   Exact health value varies by location and is not verified.

   The Onyx Lord alternates between broad greatsword swings and gravity magic. The fight does not require a separate arena puzzle; success comes from reading the attack tell, avoiding the active hitbox, and attacking during recovery.

   • Greatsword swing chainTell The boss raises or turns its large curved blade before committing to a broad melee sweep.Answer Roll through the swing toward the boss or out of the weapon's arc, then use the recovery window for a short attack sequence.
   • Gravity pullTell The boss uses a gravity animation that draws the player toward it or disrupts expected spacing.Answer Stop attacking when the pull begins, keep a roll available, and avoid healing or casting until the displacement has ended.
   • Gravity projectileTell A ranged gravity cast forms before travelling toward the player.Answer Move sideways and roll when the projectile reaches you; do not rely on simply running directly away.
   • Gravity area attackTell The boss creates a dangerous gravity effect around the combat space or at the player's position.Answer Leave the affected area immediately and resume pressure only after the effect has cleared.
   • Stay close enough to see the greatsword animation clearly, but do not remain directly in front of the boss after your attack.
   • One or two attacks followed by repositioning is safer than a long combo, especially when the boss has not finished its gravity sequence.
   • If using ranged attacks, fire while moving and avoid committing to a stationary cast during a gravity animation.

Boss encounter strategySpoilers

• Location
  Royal Grave Evergaol or Sealed Tunnel
• Health
  Varies by encounter; exact value not verified.

Begin by watching the Onyx Lord rather than immediately committing to a long attack. When it swings the greatsword, roll through the attack and answer with a brief punish; then disengage before the next gravity cast or sword chain. If the boss creates distance or begins a gravity ability, prioritize movement and survival over damage. Melee characters should fight near the boss's flank instead of standing in front of the blade, while ranged characters should circle laterally and cast only during clear recovery windows.

StrategySpoilers

1. 01

   Select the arena that contains the reward you want.

   Choose the encounter by reward

   Decide whether you are going to Royal Grave Evergaol for Meteorite or Sealed Tunnel for Onyx Lord's Greatsword. These are separate fights, so selecting the location first prevents mistaking one reward for the other.

   Location: Royal Grave Evergaol or Sealed Tunnel

   TipIf you want the weapon, make Sealed Tunnel the priority; if you want the gravity sorcery, seek out Royal Grave Evergaol.

2. 02

   Start the fight able to evade.

   Enter with stamina available

   Do not begin the exchange after spending all your stamina sprinting, attacking, or casting. The Onyx Lord's first sword commitment can require an immediate roll, and having no stamina turns a successful read into a hit.

   TipUse short attack strings and stop attacking before the stamina bar is empty.

   Watch outA greedy opening can leave you unable to roll through the first greatsword chain or escape a gravity effect.

3. 03

   Survive the primary melee sequence.

   Read the greatsword commitment

   Watch the boss's arms and blade rather than reacting only to its position. When the large curved sword begins a sweeping attack, roll through the active swing and avoid standing directly in front of the follow-up.

   TipRolling toward the boss often leaves you beside its body instead of at the end of the blade's arc.

4. 04

   Deal damage without trading hits.

   Punish the recovery

   After the sword has completed its committed motion, use the recovery to land a short attack or spell sequence. Withdraw before the boss has fully reset, because the next action may be a gravity pull rather than another obvious sword swing.

   TipOne safe punish repeated many times is more reliable than waiting for a dramatic opening and then overcommitting.

5. 05

   Avoid ranged and area control.

   React to gravity magic

   When the Onyx Lord begins a gravity cast, stop treating the encounter as a normal melee duel. Move laterally, keep an evasive roll available, and wait for the projectile or area effect to finish before resuming attacks.

   TipBacking away in a straight line can keep you in the path of the gravity attack; side movement gives more room to react.

   Watch outHealing or casting while a gravity effect is forming can be interrupted or leave you in range of the next attack.

6. 06

   Defeat the Onyx Lord.

   Close out the fight carefully

   As the boss's health falls, keep the same rhythm instead of rushing the final hits. Continue waiting for sword recovery, avoid the active gravity effect, and take the guaranteed reward only after the boss has been defeated.

   TipThe final portion of the fight is still dangerous if you abandon spacing for a last attack.

7. 07

   Collect the correct reward.

   Claim the location-specific reward

   The reward appears after the corresponding Onyx Lord encounter is cleared. Check the reward against the arena you chose: Royal Grave Evergaol provides Meteorite, while Sealed Tunnel provides Onyx Lord's Greatsword.

   Checkpoint

Pre-fight checklist

• Confirm whether you are entering Royal Grave Evergaol or Sealed Tunnel.The location determines the reward and the route to the boss.
• Leave enough stamina for at least one emergency roll after attacking.Do not begin a punish with an empty or nearly empty stamina bar.
• Equip a loadout that lets you keep moving while attacking or casting.Stationary damage attempts are vulnerable to gravity magic.
• Decide on a short punish for greatsword recovery.A controlled attack pattern is safer than committing to a full combo.
• Keep healing separate from gravity animations.Wait until the pull, projectile, or area effect has resolved.Optional
• Be prepared to retreat and return later.The Onyx Lord is optional, so an unsuccessful attempt does not require abandoning the wider game.Optional

Weaknesses and damage

Failure conditionsSpoilers

• The player dies during the encounterThe fight is lost and must be attempted again from the relevant arena. The Onyx Lord's optional status means the player can leave and return after changing equipment or improving the character.
• The player attacks through a gravity castA cast begun during an attack animation can pull, stagger, or otherwise reposition the player before the attack finishes. Stop attacking when the gravity animation starts.
• The player heals in front of the bossHealing without first creating a safe window can be punished by a gravity effect or a fast sword follow-up. Heal after the boss has completed an attack and the immediate space is clear.
• The player expects the wrong rewardRoyal Grave Evergaol and Sealed Tunnel contain different Onyx Lord encounters. Defeating one does not award the item associated with the other location.

Rewards and dropsSpoilers

• Meteorite
  The Royal Grave Evergaol Onyx Lord reward. It is a gravity sorcery, so it matters primarily to characters whose build and equipment support sorcery casting.
• Onyx Lord's Greatsword
  The Sealed Tunnel Onyx Lord reward. It is the boss's signature weapon and gives players who want a gravity-themed greatsword option a reason to seek out the dungeon encounter.

Lore

The Onyx Lord belongs to the group of humanoid beings associated with gravity sorcery in Elden Ring. Its weapon and magic present the same identity from two directions: the greatsword controls close space through sweeping attacks, while gravity spells control distance and movement.

The boss's appearance and combat style connect it to the wider gravity tradition represented by other enemies and characters in the game. The encounter therefore functions as more than a generic humanoid duel; it tests whether the player can recognize gravity magic as a threat to positioning, not merely as another source of direct damage.

Trivia

• The Onyx Lord is unusual among Elden Ring bosses because the same named boss appears in more than one optional encounter with different rewards.
• The two most useful reasons to seek the boss are split between the arenas: Meteorite is associated with Royal Grave Evergaol, while Onyx Lord's Greatsword is associated with Sealed Tunnel.
• The encounter's identity is communicated through both equipment and attacks: the boss wields the same kind of curved greatsword represented by its weapon reward and uses gravity magic throughout the fight.

Relationships