Colossus Ira Omega (Raid)

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

Raid

Grids

Guide

About Colossus Ira Omega

Unlock Requirements

• Clear the quest Shiva (Impossible) and the new raid battle will be added to Chapter 8: Valtz Duchy - Kushathra Works, Underground Factory.
• 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.

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

Raid Battles

Impossible

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

Colossus Ira Omega (Impossible) Edit battle
Cost to Host: 50 AP, Fire Crystal ×1 Fire Quartz ×1	Cost to Join: Rank 151+, 3 EP	Unlock: Rank 151+, Clear Shiva (Impossible)
Participants: 18 Vice: 2nd-3rd	Elixirs: Unlimited	Strike Time: YesStrike Time bonus applies for this raid.
Location: Chapter 8: Valtz Duchy - Kushathra Works, Underground Factory		Start QuestNetwork Errors will appear if the hosting conditions are not met. (AP, Host Materials, Daily Limit)
Lvl 200 Colossus Ira Omega Lv200 コロッサス・イラマグナ

Phase	Name	Lvl	HP	Charge	Mode
Phase 1	Colossus Ira Omega	200	1,013,000,000 (100%)	◇◇◇	Yes
	80,500 ATKEstimated damage taken from a 80,500 ATK foe DEF Element Base ATK DownATK is lowered 25% ATK DownATK is lowered 50% 10 Advantage 6,038 4,528 3,019 10 Neutral 8,050 6,038 4,025 10 Disadvantage 12,075 9,056 6,038 42 DEFEstimated damage dealt to a 42 DEF foe Element BaseRelative to damage dealt to neutral element foes in Party setup DEF DownDEF is lowered 25% DEF DownDEF is lowered 50% Advantage 35.71% 47.62% 71.43% Neutral 23.81% 31.75% 47.62% Disadvantage 17.86% 23.81% 35.71% 0%All water damage taken reduced by 0%.0%All plain damage taken reduced by 0%. DEF DownDEF is lowered Not immune〇ATK DownATK is lowered Not immune〇GravityMax charge diamonds are increased Immune✕DelayReduce a foe's filled charge diamonds by 1 Not immune〇Debuff Res. DownDebuff resistance is lowered Not immune〇Lethal HitInstant death for the victim. Immune✕PoisonedHP is lowered on every turn Not immune〇BurnedHP is lowered on every turn Not immune〇PutrefiedHP is lowered on every turn Not immune〇BlindedAttacks have a slight chance to miss Not immune〇CharmedAttacks are slightly limited Not immune〇ZombifiedReceives DMG if healed Immune✕SleepCan't attack and takes big DMG (Ends upon taking DMG) ImmuneTakes 25% more damage✕ParalyzedCan't attack Immune✕PetrifiedCharge diamonds don't fill up Immune✕StunnedCan't attack Immunity unknown？Accuracy LoweredAttacks and special attacks have a chance to miss Not immuneLocal status effect〇
	Special Attacks		Triggers and Notes
	Resolute Reactor Ira OD TR 70% 6-hit, 300% Fire damage to random allies. Inflicts Burned (5000)HP is lowered on every turn Strength: 5000Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining., 30% Fire DEF DownDEF is lowered for fire DMG Strength: 30%Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining. and 30% Water ATK DownWater ATK is lowered Strength: 30%Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining. on all allies. Furnace of Subjagation N 400% Fire damage to all allies. Inflicts Strong ArmedCan't be healed Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining.. Gains UpliftedCharge diamonds fill more quickly Duration: 2.5 turnsLocal status effectApplied during the attack phase. On the next turn, it'll have 2 turns remaining..		60% boost to Oceansoul's weapon skills. Counts towards weapon skills that have a conditional boost amount. Normal attacks hit all allies. Triggered special attacks do not clear charge diamonds. Starts battle with Support SkillFrostbane effect to self upon the chain burst Absolute Zero (Can't be removed) Duration: Indefinite, Ira EssentiaBased on lvl: ATK is boosted / DMG taken is cut / Reduce skill DMG taken (Can't be removed / Max: 10 / After taking 4 or more hits of 2,000,000 DMG within 1 turn: Lvl is lowered by 1 / Hit count is reset) 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. Ira EssentiaBased on lvl: ATK is boosted / DMG taken is cut / Reduce skill DMG taken (Can't be removed / Max: 10 / After taking 4 or more hits of 2,000,000 DMG within 1 turn: Lvl is lowered by 1 / Hit count is reset) 5% ATK UpATK is boosted Strength: 5% (Max: 50%) per lvl (Max: 50%). 5% DMG CutTaking less DMG Strength: 5% (Max: 50%)Local status effect per lvl (Max: 50%). Reduce skill damage taken by 8% per lvl (Max: 80%). After taking 4 or more hits of 2,000,000 DMG within 1 turn: Ira EssentiaBased on lvl: ATK is boosted / DMG taken is cut / Reduce skill DMG taken (Can't be removed / Max: 10 / After taking 4 or more hits of 2,000,000 DMG within 1 turn: Lvl is lowered by 1 / Hit count is reset) lvl lowers by 1. Hit count is reset. 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 lvl increases by 1. Gain ~190,000 honors. Support SkillFrostbane effect to self upon the chain burst Absolute Zero (Can't be removed) Duration: Indefinite FrostbaneFoe's DMG taken is amplified (Can't be removed) Strength: 50%Verification needed. Duration: 1 turn Local status effect effect to self upon the chain burst Absolute Zero. 70% Trigger Casts Resolute Reactor Ira.
Phase 2	Colossus Ira Omega	200	405,200,000 (40%)	◇◇◇	Yes
	83,000 ATKEstimated damage taken from a 83,000 ATK foe DEF Element Base ATK DownATK is lowered 25% ATK DownATK is lowered 50% 10 Advantage 6,225 4,669 3,113 10 Neutral 8,300 6,225 4,150 10 Disadvantage 12,450 9,338 6,225 42 DEFEstimated damage dealt to a 42 DEF foe Element BaseRelative to damage dealt to neutral element foes in Party setup DEF DownDEF is lowered 25% DEF DownDEF is lowered 50% Advantage 35.71% 47.62% 71.43% Neutral 23.81% 31.75% 47.62% Disadvantage 17.86% 23.81% 35.71% 0%All water damage taken reduced by 0%.0%All plain damage taken reduced by 0%.
	Special Attacks		Triggers and Notes
	Resolute Reactor Ira N OD TR 30% 6-hit, 300% Fire damage to random allies. Inflicts Burned (10000)HP is lowered on every turn Strength: 10000Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining., 30% Fire DEF DownDEF is lowered for fire DMG Strength: 30%Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining. and 30% Water ATK DownWater ATK is lowered Strength: 30%Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining. on all allies. Skill Interval ChangedSkill cooldown increased Lvl 10: 3 turns Lvl 9 ~ 6: 2 turns Lvl 5 ~ 1: 1 turn for damage skillsRed border based on Ira EssentiaBased on lvl: ATK is boosted / DMG taken is cut / Reduce skill DMG taken (Can't be removed / Max: 10 / After taking 4 or more hits of 2,000,000 DMG within 1 turn: Lvl is lowered by 1 / Hit count is reset) lvl. Dimensional Cleave: Extirpation TR 40% 20% 10% 5% 2000% Fire damage to all allies. Ignore DEF BoostDMG dealt ignores boosts to the target's DEF (Can't be removed) Local status effectDamage ignores boosts to DEF. Removes all buffs. Raging Heat N OD Gains Flames of WrathATK is boosted / Next Dimensional Cleave: Extirpation has boosted DMG, ignores 'all elemental DMG cut,'and can't miss (Can't be removed / Consumed upon activating Dimensional Cleave: Extirpation) Strength: 50% ATKDuration: Indefinite and 20% DEF DownDEF is lowered (Can't be removed) Strength: 20%Duration: IndefiniteLocal status effect. Performs a Normal Attack. Will only be cast once. Dimensional Cleave: Extirpation TR Flames of WrathATK is boosted / Next Dimensional Cleave: Extirpation has boosted DMG, ignores 'all elemental DMG cut,'and can't miss (Can't be removed / Consumed upon activating Dimensional Cleave: Extirpation) 6000% Fire damage to all allies. Ignore DEF BoostDMG dealt ignores boosts to the target's DEF (Can't be removed) Local status effectDMG Cut NullifiedNullifies 'all elemental DMG cut' (Can't be removed) GodsightAttacks and debuffs don't miss (Regardless of debuffs or buffs like Blind, hit to accuracy, Mirror Image, debuff resistance, and debuff immunity / Can't be removed) Local status effectDamage ignores boosts to DEF and "All-element DMG Cut". Damage can't be dodged. Removes all buffs.		Flames of WrathATK is boosted / Next Dimensional Cleave: Extirpation has boosted DMG, ignores 'all elemental DMG cut,'and can't miss (Can't be removed / Consumed upon activating Dimensional Cleave: Extirpation) Strength: 50% ATKDuration: Indefinite Gains 50% ATK UpATK is boosted Strength: 50%. Next Dimensional Cleave: Extirpation changes to Dimensional Cleave: Extirpation TR Flames of WrathATK is boosted / Next Dimensional Cleave: Extirpation has boosted DMG, ignores 'all elemental DMG cut,'and can't miss (Can't be removed / Consumed upon activating Dimensional Cleave: Extirpation) . All further Dimensional Cleave: Extirpation triggers are cancelled. 40% Trigger Mode Bar is reset. Casts Dimensional Cleave: Extirpation. 30% Trigger Casts Resolute Reactor Ira. 20% Trigger Casts Dimensional Cleave: Extirpation. 10% Trigger Casts Dimensional Cleave: Extirpation. 5% Trigger Casts Dimensional Cleave: Extirpation.
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	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.  Ira 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.  Rubeus 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.  Fire 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 Fire 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.  Fire 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.  Ira 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.  Ira 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.  Colossus 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.  Colossus 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.  Resolute Reactor
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.
Ira Anima	Archangel itemRandom SR Archangel Weapon or Queen ×4  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.  Colossus 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 Colossus Blade Omega Colossus Cane Omega Colossus Carbine Omega Colossus Fist Omega  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 Colossus Buster Ira Colossus Bomber Ira Colossus Cane Ira 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.  Ira 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.  Ira 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 Fire 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 Colossus Buster Ira Colossus Bomber Ira Colossus Cane Ira 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.  Ira 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.  Ira 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 Fire 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 Colossus Buster Ira Colossus Bomber Ira Colossus Cane Ira 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.  Ira 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.  Ira 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 Fire 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 Colossus Buster Ira Colossus Bomber Ira Colossus Cane Ira 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.  Ira 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.  Ira 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 Fire 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
This raid is eligible for bonus loot chests during Extra Drops events. See Purple Chests for additional information.
Drop rates from the otokuro2 spreadsheets. Please check the source spreadsheets for up to date numbers. Drop table last updated: 2026-07-03, all stated drop rates are estimates. The game changes over time. If the drop tables become incorrect please notify the wiki staff.