This article is about the Impossible Omega III raid. For the regular raid, see Celeste (Raid). For the Omega summon stone, see Celeste Omega.
About Celeste Ater Omega
Unlock Requirements

Need help? Check out the Guide and Grids pages for a fight breakdown and example teams!

Raid Battles

CAUTION: Enemies take 90% reduced damage from elements other than Light in these battles.

Phase 
Name 
Lvl 
HP 
Charge 
Mode 
Phase 1  Celeste Ater Omega 
200 
1,084,000,000 (100%) 
◇◇ 
Yes 
Special Attacks 
Triggers and Notes 
 Targets: Random allies
Deals: Dark DMG (10hit / 220%) Effect: MaledictionCan't resist or dodge debuffs / Receives 2 random debuffs every turn (Can't be removed / Duration can't be cut) Duration: 4.5 turnsApplied during the attack phase. On the next turn, it'll have 4 turns remaining. (Can't be resisted or dodged) / ZombifiedReceives DMG if healed (Duration can't be cut) Duration: 4.5 turnsApplied during the attack phase. On the next turn, it'll have 4 turns remaining. (All allies)
 Targets: Random allies
Deals: Dark DMG (3hit) Effect: SlashedHP is lowered on every turn Strength: 4000Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining. / 10% CollapsedCharge bar is lowered on every turn Strength: 10%Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining. (All allies)
 Targets: All allies
Deals: Dark DMG Effect: ZombifiedReceives DMG if healed Duration: 4.5 turnsApplied during the attack phase. On the next turn, it'll have 4 turns remaining. / Randomly inflict 2 of the following: Debuff Res. DownDebuff resistance is lowered Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining. / DA DownDouble attack rate is lowered Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining. and TA DownTriple attack rate is lowered Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining. / DEF DownDEF is lowered Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining. / ATK DownATK is lowered Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining. (All allies)

 60% boost to Knightcode's weapon skills.
 Normal attacks hit all allies.
 Triggered special attacks do not clear charge diamonds.
 Starts battle with Support SkillElemental DMG taken is capped based on total number of debuffs on allies (Can't be removed)
Duration: Indefinite, Ater EssentiaBased on lvl: ATK is boosted / DMG taken is cut / Bonus dark DMG for normal attacks (Can't be removed / Max: 10 / After taking 30 or more hits of normal attack DMG or 30 or more hits of skill DMG within 1 turn: Lvl is lowered by 1 / Hit count is reset for that DMG type) Duration: Indefinite, and Conditional LootDrop rate for conditional loot is boosted based on lvl (Can't be removed / Max: 10 / Lvl rises by 1 each time Essentia lvl is lowered) Duration: Indefinite.
 Lowering Ater EssentiaBased on lvl: ATK is boosted / DMG taken is cut / Bonus dark DMG for normal attacks (Can't be removed / Max: 10 / After taking 30 or more hits of normal attack DMG or 30 or more hits of skill DMG within 1 turn: Lvl is lowered by 1 / Hit count is reset for that DMG type)
lvl raises Conditional LootDrop rate for conditional loot is boosted based on lvl (Can't be removed / Max: 10 / Lvl rises by 1 each time Essentia lvl is lowered) lvl and contributes to honor gains.
 MaledictionCan't resist or dodge debuffs / Receives 2 random debuffs every turn (Can't be removed / Duration can't be cut)
 Randomly inflicts 2 of the following debuffs:
 BlindedAttacks have a slight chance to miss (Duration can't be cut)
Duration: 1.5 turnsApplied during the attack phase. On the next turn, it'll have 1 turn remaining., ZombifiedReceives DMG if healed (Duration can't be cut) Duration: 1.5 turnsApplied during the attack phase. On the next turn, it'll have 1 turn remaining., HalationHP bar is hidden (Duration can't be cut) Duration: 1.5 turnsApplied during the attack phase. On the next turn, it'll have 1 turn remaining., PetrifiedStops enemy's charge diamonds from filling. Duration: 1.5 turnsApplied during the attack phase. On the next turn, it'll have 1 turn remaining., Putrefied (4000)HP is lowered on every turn (Duration can't be cut) Strength: 4000Duration: 1.5 turnsApplied during the attack phase. On the next turn, it'll have 1 turn remaining.
 Casts Wave of Despair
 Mode Bar is reset.
 Moves to Phase 2

Phase 2  Celeste Ater Omega 
200 
433,600,000 (40%) 
◇◇ 
Yes 
Special Attacks 
Triggers and Notes 
 Wave of Despair TR 40% 15%
 Targets: Random allies
Deals: Dark DMG (10hit / 330%) Effect: MaledictionCan't resist or dodge debuffs / Receives 2 random debuffs every turn (Can't be removed / Duration can't be cut) Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining. (Can't be resisted or dodged / Duration extended up to 5 turns based on Ater EssentiaBased on lvl: ATK is boosted / DMG taken is cut / Bonus dark DMG for normal attacks (Can't be removed / Max: 10 / After taking 30 or more hits of normal attack DMG or 30 or more hits of skill DMG within 1 turn: Lvl is lowered by 1 / Hit count is reset for that DMG type) lvl) / ZombifiedReceives DMG if healed (Duration can't be cut) Duration: 4.5 turnsApplied during the attack phase. On the next turn, it'll have 4 turns remaining. (All allies)
 Depths of the Void TR 25% 10%
 Effect: 100% HP Restored / Skill SealedCan't use skills
Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining. / Max HP Lowered (Stackable)Max HP is lowered (Stackable / Can't be removed) Duration: IndefiniteAt 100%, leaves 1 max HP based on number of debuffs (All allies) Note: Applies 10% HP Lowered per debuff, calculated after Skill SealedCan't use skills is applied.
 Targets: Random allies
Deals: Dark DMG (3hit) Effect: SlashedHP is lowered on every turn Strength: 4000Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining. / 10% CollapsedCharge bar is lowered on every turn Strength: 10%Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining. (All allies)
 Targets: All allies
Deals: Dark DMG Effect: ZombifiedReceives DMG if healed Duration: 4.5 turnsApplied during the attack phase. On the next turn, it'll have 4 turns remaining. / Randomly inflict 3 of the following: Debuff Res. DownDebuff resistance is lowered Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining. / DA DownDouble attack rate is lowered Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining. and TA DownTriple attack rate is lowered Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining. / DEF DownDEF is lowered Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining. / ATK DownATK is lowered Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining. (All allies)

 Casts Wave of Despair.
 Casts Depths of the Void.
 Casts Wave of Despair.
 Casts Depths of the Void.
 MaledictionCan't resist or dodge debuffs / Receives 2 random debuffs every turn (Can't be removed / Duration can't be cut)
Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining. duration increases based on Ater EssentiaBased on lvl: ATK is boosted / DMG taken is cut / Bonus dark DMG for normal attacks (Can't be removed / Max: 10 / After taking 30 or more hits of normal attack DMG or 30 or more hits of skill DMG within 1 turn: Lvl is lowered by 1 / Hit count is reset for that DMG type) lvl:
Lvl 
Status 
Increase 
Total Duration 
10 
Ater EssentiaBased on lvl: ATK is boosted / DMG taken is cut / Bonus dark DMG for normal attacks (Can't be removed / Max: 10 / After taking 30 or more hits of normal attack DMG or 30 or more hits of skill DMG within 1 turn: Lvl is lowered by 1 / Hit count is reset for that DMG type)

+5 turns 
7.5 turns 
9 
Ater EssentiaBased on lvl: ATK is boosted / DMG taken is cut / Bonus dark DMG for normal attacks (Can't be removed / Max: 10 / After taking 30 or more hits of normal attack DMG or 30 or more hits of skill DMG within 1 turn: Lvl is lowered by 1 / Hit count is reset for that DMG type)

8 
Ater EssentiaBased on lvl: ATK is boosted / DMG taken is cut / Bonus dark DMG for normal attacks (Can't be removed / Max: 10 / After taking 30 or more hits of normal attack DMG or 30 or more hits of skill DMG within 1 turn: Lvl is lowered by 1 / Hit count is reset for that DMG type)

+4 turns 
6.5 turns 
7 
Ater EssentiaBased on lvl: ATK is boosted / DMG taken is cut / Bonus dark DMG for normal attacks (Can't be removed / Max: 10 / After taking 30 or more hits of normal attack DMG or 30 or more hits of skill DMG within 1 turn: Lvl is lowered by 1 / Hit count is reset for that DMG type)

6 
Ater EssentiaBased on lvl: ATK is boosted / DMG taken is cut / Bonus dark DMG for normal attacks (Can't be removed / Max: 10 / After taking 30 or more hits of normal attack DMG or 30 or more hits of skill DMG within 1 turn: Lvl is lowered by 1 / Hit count is reset for that DMG type)

+3 turns 
5.5 turns 
5 
Ater EssentiaBased on lvl: ATK is boosted / DMG taken is cut / Bonus dark DMG for normal attacks (Can't be removed / Max: 10 / After taking 30 or more hits of normal attack DMG or 30 or more hits of skill DMG within 1 turn: Lvl is lowered by 1 / Hit count is reset for that DMG type)

4 
Ater EssentiaBased on lvl: ATK is boosted / DMG taken is cut / Bonus dark DMG for normal attacks (Can't be removed / Max: 10 / After taking 30 or more hits of normal attack DMG or 30 or more hits of skill DMG within 1 turn: Lvl is lowered by 1 / Hit count is reset for that DMG type)

+2 turns 
4.5 turns 
3 
Ater EssentiaBased on lvl: ATK is boosted / DMG taken is cut / Bonus dark DMG for normal attacks (Can't be removed / Max: 10 / After taking 30 or more hits of normal attack DMG or 30 or more hits of skill DMG within 1 turn: Lvl is lowered by 1 / Hit count is reset for that DMG type)

2 
Ater EssentiaBased on lvl: ATK is boosted / DMG taken is cut / Bonus dark DMG for normal attacks (Can't be removed / Max: 10 / After taking 30 or more hits of normal attack DMG or 30 or more hits of skill DMG within 1 turn: Lvl is lowered by 1 / Hit count is reset for that DMG type)

+1 turn 
3.5 turns 
1 
Ater EssentiaBased on lvl: ATK is boosted / DMG taken is cut / Bonus dark DMG for normal attacks (Can't be removed / Max: 10 / After taking 30 or more hits of normal attack DMG or 30 or more hits of skill DMG within 1 turn: Lvl is lowered by 1 / Hit count is reset for that DMG type)


N  Normal, OD  Overdrive, TR  Trigger 
Chest 1 
Chest 2 
Chest 3 
100% 
100% 
100% 
 100.0100.00% ±0.00% chance to be selected when chest drops.
Based on 946 drops from 946 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Immortal Fragment

 29.929.94% ±2.15% chance to be selected when chest drops.
Based on 368 drops from 1229 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Ater Anima  15.615.62% ±1.70% chance to be selected when chest drops.
Based on 192 drops from 1229 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Ater Centrum  16.016.03% ±1.72% chance to be selected when chest drops.
Based on 197 drops from 1229 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Dark Urn  33.433.44% ±2.21% chance to be selected when chest drops.
Based on 411 drops from 1229 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. True Dark Anima  5.04.96% ±1.02% chance to be selected when chest drops.
Based on 61 drops from 1229 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Dark Quartz ×3

 15.615.61% ±1.70% chance to be selected when chest drops.
Based on 192 drops from 1230 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Ater Anima  10.410.41% ±1.43% chance to be selected when chest drops.
Based on 128 drops from 1230 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Ater Anima ×2  31.731.71% ±2.18% chance to be selected when chest drops.
Based on 390 drops from 1230 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Celeste Omega Anima  4.84.80% ±1.00% chance to be selected when chest drops.
Based on 59 drops from 1230 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Celeste Omega Anima ×2  5.25.20% ±1.04% chance to be selected when chest drops.
Based on 64 drops from 1230 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Omega Fragment  4.84.80% ±1.00% chance to be selected when chest drops.
Based on 59 drops from 1230 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Genesis Fragment  27.627.56% ±2.10% chance to be selected when chest drops.
Based on 339 drops from 1230 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Black Fog Sphere

Chest 4 
Chest 5 
Blue 
100% 
50?% 
9.72% (~1,249,895)9.72% of total honor is required to guarantee a blue chest. Based on HP alone a minimum 1,055,495 honor is required to guarantee a blue chest. Typically 1,249,895 honor should be enough to guarantee a blue chest under normal circumstances. 
 100.0100.00% ±0.00% chance to be selected when chest drops.
Based on 944 drops from 944 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Archangel itemRandom SR Archangel Weapon or Queen

 93.093.02% ±0.91% chance to be selected when chest drops.
Based on 1959 drops from 2106 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Archangel itemRandom SR Archangel Weapon or Queen  1.41.38% ±0.42% chance to be selected when chest drops.
Based on 29 drops from 2106 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Celeste Omega  5.65.56% ±0.82% chance to be selected when chest drops.
Based on 117 drops from 2106 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Omega Weapons  0.00.05% ±0.08% chance to be selected when chest drops.
Based on 1 drops from 2106 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Eternity Sand

 2.92.89% ±0.56% chance to be selected when chest drops.
Based on 70 drops from 2418 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Rebirth Weapons  55.555.54% ±1.66% chance to be selected when chest drops.
Based on 1343 drops from 2418 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Ater Anima  1.01.03% ±0.34% chance to be selected when chest drops.
Based on 25 drops from 2418 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Ater Omega Anima  7.47.44% ±0.88% chance to be selected when chest drops.
Based on 180 drops from 2418 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Supreme Merit  3.33.35% ±0.60% chance to be selected when chest drops.
Based on 81 drops from 2418 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Legendary Merit  26.626.63% ±1.48% chance to be selected when chest drops.
Based on 644 drops from 2418 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. True Dark Anima  2.42.40% ±0.51% chance to be selected when chest drops.
Based on 58 drops from 2418 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Weapon Plus Mark  0.60.62% ±0.26% chance to be selected when chest drops.
Based on 15 drops from 2418 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Weapon Plus Mark ×2  0.10.08% ±0.10% chance to be selected when chest drops.
Based on 2 drops from 2418 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Weapon Plus Mark ×3

Host 
MVP 
Conditional 
 5.65.61% ±1.69% chance to be selected when chest drops.
Based on 28 drops from 499 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Rebirth Weapons  51.351.30% ±3.68% chance to be selected when chest drops.
Based on 256 drops from 499 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Ater Anima  13.613.63% ±2.53% chance to be selected when chest drops.
Based on 68 drops from 499 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Ater Omega Anima  2.02.00% ±1.03% chance to be selected when chest drops.
Based on 10 drops from 499 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Legendary Merit  21.221.24% ±3.01% chance to be selected when chest drops.
Based on 106 drops from 499 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. True Dark Anima ×2  3.63.61% ±1.37% chance to be selected when chest drops.
Based on 18 drops from 499 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Weapon Plus Mark  1.61.60% ±0.92% chance to be selected when chest drops.
Based on 8 drops from 499 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Weapon Plus Mark ×2  1.01.00% ±0.73% chance to be selected when chest drops.
Based on 5 drops from 499 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Weapon Plus Mark ×3
  3.23.20% ±0.84% chance to be selected when chest drops.
Based on 38 drops from 1187 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Rebirth Weapons  38.138.08% ±2.32% chance to be selected when chest drops.
Based on 452 drops from 1187 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Ater Anima  1.21.18% ±0.52% chance to be selected when chest drops.
Based on 14 drops from 1187 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Ater Omega Anima  8.18.09% ±1.30% chance to be selected when chest drops.
Based on 96 drops from 1187 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Supreme Merit  2.92.95% ±0.81% chance to be selected when chest drops.
Based on 35 drops from 1187 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Legendary Merit  9.39.27% ±1.38% chance to be selected when chest drops.
Based on 110 drops from 1187 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Soul Balm  29.829.82% ±2.18% chance to be selected when chest drops.
Based on 354 drops from 1187 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. True Dark Anima  4.54.47% ±0.99% chance to be selected when chest drops.
Based on 53 drops from 1187 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Weapon Plus Mark  2.42.36% ±0.72% chance to be selected when chest drops.
Based on 28 drops from 1187 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Weapon Plus Mark ×2  0.60.59% ±0.37% chance to be selected when chest drops.
Based on 7 drops from 1187 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Weapon Plus Mark ×3

 2.52.53% ±0.50% chance to be selected when chest drops.
Based on 68 drops from 2692 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Rebirth Weapons  55.255.24% ±1.58% chance to be selected when chest drops.
Based on 1487 drops from 2692 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Ater Anima  0.60.63% ±0.25% chance to be selected when chest drops.
Based on 17 drops from 2692 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Ater Omega Anima  8.48.40% ±0.88% chance to be selected when chest drops.
Based on 226 drops from 2692 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Supreme Merit  3.63.57% ±0.59% chance to be selected when chest drops.
Based on 96 drops from 2692 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Legendary Merit  27.227.15% ±1.41% chance to be selected when chest drops.
Based on 731 drops from 2692 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. True Dark Anima  1.91.93% ±0.44% chance to be selected when chest drops.
Based on 52 drops from 2692 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Weapon Plus Mark  0.60.56% ±0.24% chance to be selected when chest drops.
Based on 15 drops from 2692 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Weapon Plus Mark ×2  0.00.00% ±0.00% chance to be selected when chest drops.
Based on 0 drops from 2692 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence. Weapon Plus Mark ×3

Drop rates from the otokuro2 spreadsheets. Please check the source spreadsheets for up to date numbers. Drop table last updated: 20240624, all stated drop rates are estimates. The game changes over time. If the drop tables become incorrect please notify the wiki staff. 
Voice Lines
Resources


Standard Raids 

Omega  

Tier 2 Summons  

 

Primarchs  

Ultimate  


Impossible Raids 

Omega HL  

Regalia  

Ennead  

Malice & Menace  

 

Omega Rebirth  

Six Dragons  

 

 

Revans  

Mastery Trials  

Super Ultimate  

 


References