Celeste Ater Omega (Raid)

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

Raid

Grids

About Celeste Ater Omega

Unlock Requirements

• Clear the quest Avatar (Impossible) and the new raid battle will be added to Chapter 24: Mist-Shrouded Isle - Dispirra Cliff.
• You must be rank 151 or higher to play this quest. You won't receive backup requests for it if you're below rank 151.

Raid Battles

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

Celeste Ater Omega (Impossible) Edit battle
Cost to Host: 50 AP, Dark Crystal ×1 Dark Quartz ×1	Cost to Join: Rank 151+, 3 EP	Unlock: Rank 151+, Clear Avatar (Impossible)
Participants: 18 Vice: 2nd-3rd	Elixirs: Unlimited	Strike Time: YesStrike Time bonus applies for this raid.
Location: Chapter 24: Mist-Shrouded Isle - Dispirra Cliff
Lvl 200 Celeste Ater Omega Lv200 セレスト・アーテルマグナ

Phase	Name	Lvl	HP	Charge	Mode
Phase 1	Celeste Ater Omega	200	1,084,000,000 (100%)	◇◇	Yes
	Special Attacks		Triggers and Notes
	Wave of Despair TR 95% Targets: Random allies Deals: Dark DMG (10-hit / 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) Ghastly Surge N Targets: Random allies Deals: Dark DMG (3-hit) 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) Abyssal Plague OD 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)		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. 95% Trigger Casts Wave of Despair 40%% Trigger 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 (10-hit / 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. Ghastly Surge N Targets: Random allies Deals: Dark DMG (3-hit) 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) Abyssal Plague N OD 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)		40%% Trigger Casts Wave of Despair. 25% Trigger Casts Depths of the Void. 15% Trigger Casts Wave of Despair. 10% Trigger Casts Depths of the Void.
N - Normal, OD - Overdrive, TR - Trigger

Rewards
First clear: Crystal ×50
Host: Prestige Pendant ×50		Join: Prestige Pendant ×35	Crew: Prestige Pendant ×35

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	31.031.02% ±2.49% chance to be selected when chest drops. Based on 290 drops from 935 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Ater Anima 15.715.72% ±1.96% chance to be selected when chest drops. Based on 147 drops from 935 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Ater Centrum 15.115.08% ±1.92% chance to be selected when chest drops. Based on 141 drops from 935 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Dark Urn 34.334.33% ±2.55% chance to be selected when chest drops. Based on 321 drops from 935 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  True Dark Anima  3.93.85% ±1.04% chance to be selected when chest drops. Based on 36 drops from 935 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Dark Quartz ×3	14.514.45% ±1.89% chance to be selected when chest drops. Based on 135 drops from 934 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Ater Anima 10.710.71% ±1.66% chance to be selected when chest drops. Based on 100 drops from 934 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Ater Anima ×2 32.532.55% ±2.52% chance to be selected when chest drops. Based on 304 drops from 934 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Celeste Omega Anima  4.44.39% ±1.10% chance to be selected when chest drops. Based on 41 drops from 934 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Celeste Omega Anima ×2  5.45.35% ±1.21% chance to be selected when chest drops. Based on 50 drops from 934 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Omega Fragment  5.05.03% ±1.18% chance to be selected when chest drops. Based on 47 drops from 934 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Genesis Fragment 27.527.52% ±2.40% chance to be selected when chest drops. Based on 257 drops from 934 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Black Fog Sphere
Chest 4	Chest 5	Blue
100%	50?%	9.72% (~1,232,496)9.72% of total honor is required to guarantee a blue chest. Based on HP alone a minimum 1,038,096 honor is required to guarantee a blue chest. Typically 1,232,496 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	92.592.51% ±1.29% chance to be selected when chest drops. Based on 1038 drops from 1122 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Archangel itemRandom SR Archangel Weapon or Queen  1.41.43% ±0.58% chance to be selected when chest drops. Based on 16 drops from 1122 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Celeste Omega  6.05.97% ±1.16% chance to be selected when chest drops. Based on 67 drops from 1122 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Omega Weapons Celeste Claw Omega Celeste Horn Omega Celeste Harp Omega Celeste Zaghnal Omega  0.10.09% ±0.15% chance to be selected when chest drops. Based on 1 drops from 1122 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Eternity Sand	3.02.96% ±0.76% chance to be selected when chest drops. Based on 40 drops from 1350 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Rebirth Weapons Celeste Dagger Ater Celeste Grace Ater Celeste Saber Ater 55.655.63% ±2.22% chance to be selected when chest drops. Based on 751 drops from 1350 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Ater Anima  1.21.19% ±0.48% chance to be selected when chest drops. Based on 16 drops from 1350 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Ater Omega Anima  7.47.41% ±1.17% chance to be selected when chest drops. Based on 100 drops from 1350 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Supreme Merit  3.02.96% ±0.76% chance to be selected when chest drops. Based on 40 drops from 1350 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Legendary Merit 26.926.89% ±1.98% chance to be selected when chest drops. Based on 363 drops from 1350 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  True Dark Anima  2.42.44% ±0.69% chance to be selected when chest drops. Based on 33 drops from 1350 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Weapon Plus Mark  0.50.52% ±0.32% chance to be selected when chest drops. Based on 7 drops from 1350 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 1350 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Weapon Plus Mark ×3
Host	MVP	Conditional
5.45.45% ±2.63% chance to be selected when chest drops. Based on 11 drops from 202 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Rebirth Weapons Celeste Dagger Ater Celeste Grace Ater Celeste Saber Ater 49.049.01% ±5.79% chance to be selected when chest drops. Based on 99 drops from 202 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Ater Anima 15.315.35% ±4.17% chance to be selected when chest drops. Based on 31 drops from 202 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Ater Omega Anima  1.51.49% ±1.40% chance to be selected when chest drops. Based on 3 drops from 202 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Legendary Merit 22.822.77% ±4.85% chance to be selected when chest drops. Based on 46 drops from 202 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  True Dark Anima ×2  3.53.47% ±2.12% chance to be selected when chest drops. Based on 7 drops from 202 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Weapon Plus Mark  1.00.99% ±1.15% chance to be selected when chest drops. Based on 2 drops from 202 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Weapon Plus Mark ×2  1.00.99% ±1.15% chance to be selected when chest drops. Based on 2 drops from 202 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Weapon Plus Mark ×3	3.13.09% ±1.21% chance to be selected when chest drops. Based on 17 drops from 551 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Rebirth Weapons Celeste Dagger Ater Celeste Grace Ater Celeste Saber Ater 38.838.84% ±3.42% chance to be selected when chest drops. Based on 214 drops from 551 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Ater Anima  1.31.27% ±0.78% chance to be selected when chest drops. Based on 7 drops from 551 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Ater Omega Anima  8.78.71% ±1.98% chance to be selected when chest drops. Based on 48 drops from 551 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Supreme Merit  2.92.90% ±1.18% chance to be selected when chest drops. Based on 16 drops from 551 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Legendary Merit  8.07.99% ±1.90% chance to be selected when chest drops. Based on 44 drops from 551 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Soul Balm 29.429.40% ±3.19% chance to be selected when chest drops. Based on 162 drops from 551 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  True Dark Anima  4.94.90% ±1.51% chance to be selected when chest drops. Based on 27 drops from 551 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Weapon Plus Mark  2.22.18% ±1.02% chance to be selected when chest drops. Based on 12 drops from 551 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Weapon Plus Mark ×2  0.70.73% ±0.59% chance to be selected when chest drops. Based on 4 drops from 551 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Weapon Plus Mark ×3	2.42.43% ±0.63% chance to be selected when chest drops. Based on 39 drops from 1608 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Rebirth Weapons Celeste Dagger Ater Celeste Grace Ater Celeste Saber Ater 55.054.98% ±2.04% chance to be selected when chest drops. Based on 884 drops from 1608 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Ater Anima  0.60.62% ±0.32% chance to be selected when chest drops. Based on 10 drops from 1608 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Ater Omega Anima  8.78.71% ±1.16% chance to be selected when chest drops. Based on 140 drops from 1608 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Supreme Merit  3.83.79% ±0.78% chance to be selected when chest drops. Based on 61 drops from 1608 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Legendary Merit 26.926.93% ±1.82% chance to be selected when chest drops. Based on 433 drops from 1608 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  True Dark Anima  2.12.05% ±0.58% chance to be selected when chest drops. Based on 33 drops from 1608 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Weapon Plus Mark  0.50.50% ±0.29% chance to be selected when chest drops. Based on 8 drops from 1608 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 1608 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: 2024-04-05, all stated drop rates are estimates. The game changes over time. If the drop tables become incorrect please notify the wiki staff.