Sourcemined
Elden Ring
BossAltus PlateauCapital OutskirtsChanged in 2 patchesVerified on build 25080141

Onyx Lord

Fought in 3 places, from 4,058 HP to 5,190 HP at Caelid · Sellia Crystal Tunnel: each placement carries its own area scaling. It takes the most damage from Standard and the least from Magic.

HP (NG)
4,058–5,190
HP in NG+7
7,375
Stance
65
Weakest to
Standard 10%
Resists most
Magic 20%
Nearest grace
Sellia Crystal Tunnel

How Onyx Lord fights

At Caelid · Sellia Crystal Tunnel, its toughest placement: 5,190 HP.

Attack choice by distance verified

Share of its picks per attack routine at each range, from its main weight tables (it switches between 3 sets of tables by state; one is shown). Routines are numbered as in its script.

  • Routine 42
  • Routine 9
  • Routine 5
  • Routine 3
  • Routine 7
  • Other
  • Right column: routines it can pick there
Show as a table
DistanceRoutinesMost likely picks
3–5 m7#3 20% · #5 20% · #8 20%
5–8 m6#7 30% · #9 20% · #44 20%
8–15 m4#9 50% · #5 20% · #41 20%
15 m +3#42 78% · #48 17% · #40 6%
Attack routines
17
With a cooldown
8 5–20 s
Walk in before attacking
14 from up to 10 m

What hurts it most

  1. Standard10%
  2. Slash10% ±0
  3. Strike10% ±0
  4. Pierce10% ±0
  5. Magic20% −11%
  6. Fire20% −11%
  7. Lightning20% −11%
  8. Holy20% −11%

Negation (lower lets more through), and how much more or less damage that type deals than Standard does.

Status procs to kill it

Status1st procHP per procProcs to kill
Bleed36787965,223 buildup
FrostImmune
Poison36795765,223 buildup
Scarlet Rot3672,19131,587 buildup

From full HP with that status alone; thresholds grow after each proc. Frostbite's extra 20% damage taken isn't counted.

AI facts are read from the boss's own battle script; only selection weights, HP checks, distances and cooldowns are kept, and what each routine looks like isn't named yet.

Where you fight it 3

Each place uses its own copy of the boss with that area's scaling. HP and stance as you meet them (first phase, offline, no new game plus).

PlaceHPStanceScaling
Altus Plateau · Abandoned Coffin4,05865×5.376
Capital Outskirts · Divine Tower of West Altus: Gate4,90765×6.5
Caelid · Sellia Crystal Tunnel5,19065×6.875

Damage negation

How much of each damage type it shrugs off. Lower is better for you; the type it takes most is highlighted.

Standard10%
Slash10%
Strike10%
Pierce10%
Magic20%
Fire20%
Lightning20%
Holy20%

Flat defense

Subtracted from each hit before negation; it matters most for weak hits. Area scaling raises it along with HP.

Altus Plateau · Abandoned Coffin

Physical110
Magic110
Fire110
Lightning110
Holy110

Capital Outskirts · Divine Tower of West Altus: Gate

Physical111
Magic111
Fire111
Lightning111
Holy111

Caelid · Sellia Crystal Tunnel

Physical120
Magic120
Fire120
Lightning120
Holy120

Status buildup to proc

Buildup needed for the first proc, and how much more each following proc needs (it grows after every proc, up to the fifth).

Altus Plateau · Abandoned Coffin

Status1st proc2nd3rd4th
Poison3304287181,175
Scarlet Rot3304287181,175
Bleed3304287181,175
FrostImmune
Sleep240282380670
MadnessImmune
Death BlightImmune

Capital Outskirts · Divine Tower of West Altus: Gate

Status1st proc2nd3rd4th
Poison3324307201,177
Scarlet Rot3324307201,177
Bleed3324307201,177
FrostImmune
Sleep242284382672
MadnessImmune
Death BlightImmune

Caelid · Sellia Crystal Tunnel

Status1st proc2nd3rd4th
Poison3674657551,212
Scarlet Rot3674657551,212
Bleed3674657551,212
FrostImmune
Sleep267309407697
MadnessImmune
Death BlightImmune

HP in each journey

At Caelid · Sellia Crystal Tunnel: new game plus multiplies HP, defense and resistances again on top of the area's scaling.

NGNG+1NG+2NG+3NG+4NG+5NG+6NG+7
5,1905,2685,7956,0586,3226,8497,1127,375

Kill-speed simulator New

How many hits Onyx Lord takes with your weapon and stats, in any journey: damage per hit through its defense and negations, stance, and status procs as its thresholds grow.

Simulate Onyx Lord

Patch history 2

Every patch that changed its numbers, read from the game's balance file (regulation) of each version.

  1. 1.02.1from 1.00
    • HP671→755
    • Runes5,337→4,852
    • Standard negation20%→10%
    • Slash negation20%→10%
    • Strike negation20%→10%
    • Pierce negation20%→10%
    Every changed value (10)
    ValueBeforetoAfterChange
    Key changes 6
    HP×3 variants671755+84+13%
    Runes5,3374,852−485−9.1%
    Standard negation×3 variants20%10%−10 pts
    Slash negation×3 variants20%10%−10 pts
    Strike negation×3 variants20%10%−10 pts
    Pierce negation×3 variants20%10%−10 pts
    Linked data 3
    SpEffect ID [14]×2 variants90,2000changed
    SpEffect ID [21]×2 variants4,301-1changed
    SpEffect ID [31]×2 variants-14,301changed
    1 technical value (sorting, effects, display)
    ValueBeforetoAfterChange
    Network Warp Display×3 variants16100changed
  2. 1.12.1from 1.10
      Every changed value (2)
      ValueBeforetoAfterChange
      Damage 1
      HP Burn Damage %×3 variants0100+100
      Linked data 1
      DLC Completion SpEffect ID×3 variants0-1changed

    Other bosses in Altus Plateau