Xeno Cocytus Clash

This article is about the Xeno Clash. For the summon stone, see Xeno Cocytus. For the Militis boss in Replicard Sandbox, see Xeno Cocytus Militis.

Xeno Cocytus Clash is one of the Xeno Clashes, which award items to trade for Xeno weapons and summons.

For New Players

Xeno Cocytus Clash is primarily for obtaining Xeno weapons. Xeno weapons have a Massive EX ATK weapon skill. For newer players, even a 0★ copy of a Xeno weapon is a strong addition to most grids.

As grid pieces, Xeno weapons from this event are inferior to Fateless with its Unworldly EX ATK, so players with limited resources are recommended to prioritize the weapon more likely to see use as a main weapon.

True Glacial Dream Staff is a niche weapon used when needing healing or debuff removal.
Dante Alighieri sees use for Elysian, Lumberjack, and Rising Force for the buffs on charge attack and the additional damage and debuffs when a foe uses a special attack.

Other Rewards

Seal of the Underworld Emperor is a Crucible Seal Wonder which provides bonuses to Water characters except in Unite and Fight. The effects can be turned on or off in the Wonders tab of the Supplies page.
Vergilius sees niche use in Varuna-based grids that require HP while still providing attack. It is available at all times from the Normal Showdown shop, making it a very low priority in the Xeno shop.
Cocytus is an older summon with a weak aura and call. It is available at all times from the Normal Showdown shop, making it a very low priority in the Xeno shop.
Xeno Cocytus has a strong Elemental ATK boosting aura if the weapon requirements can be met, and comes with a decent elemental ATK boost on call.

Simplified drop table

Difficulty	Frozen Hell Prism	Crystal Spirit	Cocytus Anima	Cocytus Omega Anima	True Xeno Cocytus Anima	Frozen Hellplume	Xeno Glacial Dream Staff	Dante's Harp	Vergilius	Cocytus	Xeno Cocytus
Extreme	0-3	8-10	3-6	2-4	1-2	1-3
Maniac	0-3	15-19	7-11	4-7	2-3	3-5

Quests

Found in Quests > Special, there are 2 quest difficulties.

Lvl 60 Xeno Cocytus Edit battle
Cost to Host: 15 AP	Unlock: Rank 30+

Wave	Name	Lvl	HP	Charge	Mode
Wave 1	Gelgja	20	230,000	◇	No
	Gelgja	20	210,000	◇◇◇	No
	Gelgja	20	190,000	◇◇	No
Wave 2	Aqua Gyre	20	270,000	◇◇◇	No
	Dark Gyre	20	120,000	◇◇	No
	Aqua Gyre	20	260,000	◇◇	No
Boss	Xeno Cocytus	60	5,500,000	◇◇	Yes
	Special Attacks		Triggers and Notes
	Caina TR 80% Targets: One ally Deals: Water DMG (300%) Effect: GlaciateATK, DEF, and multiattack rate is lowered / HP is lowered on every turn (Same effect will be spread to an ally when the character uses a skill / Spread effect ignores debuff immunity) Duration: 3.5 turnsApplied during the attack phase. On the next turn, it'll have 3 turns remaining. (One ally) Blizzard TR 50% Effect: DA UpDouble attack rate is boosted Local status effect / TA UpTriple attack rate is boosted Local status effect / Divina CommediaATK and multiattack rate are boosted (Can't be removed) / Hellgate activates when effect ends Local status effect / Deploys the BlizzardATK is modified by number of turns passed Duration: 180 secondsField effect field effect (Self) Judecca TR 20% Targets: All allies Deals: Water DMG (100%) Effect: BlindedAttacks have a slight chance to miss Duration: 3.5 turnsApplied during the attack phase. On the next turn, it'll have 3 turns remaining. / Water DEF DownDEF is lowered for water DMG Duration: 3.5 turnsApplied during the attack phase. On the next turn, it'll have 3 turns remaining. (All allies)		Upon entering Overdrive Fills all charge diamonds. 80% Trigger Casts Caina. 50% Trigger Casts Blizzard. 20% Trigger Casts Judecca.
	Durante	60	900,000	◇◇◇	No
	Special Attacks		Triggers and Notes
	Hellgate TR 25% Effect: DA DownDouble attack rate is lowered Local status effect / TA DownTriple attack rate is lowered Local status effect / ATK UpATK is boosted Local status effect / 10% HP Restored (All foes) / 9,999,999 Bonus DMG (Self) Canticum Effect: DEF UpDEF is boosted Local status effect (All foes)		25% Trigger Casts Hellgate.
N - Normal, OD - Overdrive, TR - Trigger

Rewards
First clear: Crystal ×50

Wooden	Silver	Gold
Water Orb Blue Tome	Crystal Spirit Frozen Hell Prism Cocytus Anima Angel itemRandom R Angel Weapon or Queen Frost Orb Water Grimoire Flood Scroll	Dante's Harp Limbo Makebranche Fraud Fire Frozen Hellplume Cocytus Omega Anima True Xeno Cocytus Anima Archangel itemRandom SR Archangel Weapon or Queen Tidal Whorl Cocytus
Drop table last updated: 2023-03-11The game changes over time. If the drop tables become incorrect please notify the wiki staff., all stated drop rates are estimates.

Lvl 80 Xeno Cocytus Edit battle
Cost to Host: 50 AP	Unlock: Rank 50+

Wave	Name	Lvl	HP	Charge	Mode
Wave 1	Gelgja	30	710,000	◇	No
	Gelgja	30	660,000	◇◇	No
	Gelgja	30	720,000	◇◇	No
Wave 2	Aqua Gyre	30	430,000	◇◇	No
	Dark Gyre	30	290,000	◇◇	No
	Aqua Gyre	30	460,000	◇◇	No
Wave 3	Karkinos	60	2,600,000	◇◇◇	Yes
	Special Attacks		Triggers and Notes
	An-Nathra TR 50% Targets: All allies Deals: Water DMG (120%) Effect: DA DownDouble attack rate is lowered Duration: 3.5 turnsApplied during the attack phase. On the next turn, it'll have 3 turns remaining. (All allies)		50% Trigger Casts An-Nathra.
Boss	Xeno Cocytus	80	8,800,000	◇◇	Yes
	Special Attacks		Triggers and Notes
	Caina TR 80% Targets: One ally Deals: Water DMG (300%) Effect: GlaciateATK, DEF, and multiattack rate is lowered / HP is lowered on every turn (Same effect will be spread to an ally when the character uses a skill / Spread effect ignores debuff immunity) Duration: 3.5 turnsApplied during the attack phase. On the next turn, it'll have 3 turns remaining. (One ally) Blizzard TR 50% Effect: DA UpDouble attack rate is boosted Local status effect / TA UpTriple attack rate is boosted Local status effect / Divina CommediaATK and multiattack rate are boosted (Can't be removed) / Hellgate activates when effect ends Local status effect / Deploys the BlizzardATK is modified by number of turns passed Duration: 180 secondsField effect field effect (Self) Judecca TR 20% Targets: All allies Deals: Water DMG (100%) Effect: BlindedAttacks have a slight chance to miss Duration: 3.5 turnsApplied during the attack phase. On the next turn, it'll have 3 turns remaining. / Water DEF DownDEF is lowered for water DMG Duration: 3.5 turnsApplied during the attack phase. On the next turn, it'll have 3 turns remaining. (All allies) Tromea OD Targets: All allies Deals: Water DMG Effect: C.A. SealedCan't use charge attack Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining. (All allies)		Upon entering Overdrive Fills all charge diamonds. 80% Trigger Casts Caina. 50% Trigger Casts Blizzard. 20% Trigger Casts Judecca.
	Durante	80	2,300,000	◇◇◇	No
	Special Attacks		Triggers and Notes
	Hellgate TR 25% Effect: DA DownDouble attack rate is lowered Local status effect / TA DownTriple attack rate is lowered Local status effect / ATK UpATK is boosted Local status effect / 10% HP Restored (All foes) / 9,999,999 Bonus DMG (Self)		25% Trigger Casts Hellgate.
N - Normal, OD - Overdrive, TR - Trigger

Rewards
First clear: Crystal ×50

Wooden	Silver	Gold
Water Orb Blue Tome	Crystal Spirit Frozen Hell Prism Cocytus Anima Angel itemRandom R Angel Weapon or Queen Frost Orb Water Grimoire Flood Scroll	Limbo Makebranche Frozen Hellplume Cocytus Omega Anima True Xeno Cocytus Anima Archangel itemRandom SR Archangel Weapon or Queen Blue Dragon Scale Tidal Whorl
Drop table last updated: 2023-03-11The game changes over time. If the drop tables become incorrect please notify the wiki staff., all stated drop rates are estimates.

Event Shop

Found in Shop > Treasure Trade > Quest Items > Event Other > Showdowns / Clashes

Inventory
Item	Step	Limit
Xeno Cocytus	1	1	20	-	16	5	3	-
	2	1	40	-	32	12	8	-
	3	1	95	-	55	24	32	-
	4	1	128	-	99	64	70	-
Xeno Glacial Dream Staff	1	1	30	-	20	3	10	-
	2	1	60	-	30	5	15	-
	3	1	100	-	40	10	20	-
	4	1	150	-	70	20	35	-
	5	1	200	-	100	30	50	-
Dante's Harp	1	1	30	-	20	3	10	-
	2	1	60	-	30	5	15	-
	3	1	100	-	40	10	20	-
	4	1	150	-	70	20	35	-
	5	1	200	-	100	30	50	-
Seal of the Underworld Emperor	1	1	300	-	150	60	100	-
Cocytus	1	1	30	20	10	-	-	-
	2	1	80	40	30	-	-	-
	3	1	120	60	50	-	-	-
	4	1	150	80	70	-	-	-
Vergilius	1	1	20	15	5	-	-	-
	2	1	50	30	20	-	-	-
	3	1	80	50	40	-	-	-
	4	1	100	75	60	-	-	-
Angel Queen	1	30	10	-	-	-	-	-
Half Elixir	1	20/month	5	5	-	-	-	-
Half Elixir	1	20/month	-	-	-	-	-	10
Staff Stone ×10	1	5	20	10	-	-	-	-
Staff Stone ×10	2	5	20	10	-	3	-	-
Harp Stone ×10	1	5	20	10	-	-	-	-
Harp Stone ×10	2	5	20	10	-	3	-	-
Water Quartz ×10	1	5	20	10	-	-	-	-
Water Quartz ×10	2	5	20	10	-	3	-	-
Water Halo	1	4	60	15	-	3	-	-
Water Crystal	1	5	45	20	5	-	-	-
Water Urn	1	5	45	20	5	-	-	-
Indicus Centrum	1	5	20	10	-	-	-	-
True Water Anima	1	5	15	10	-	-	-	-
CP ×10	1	20	10	3	-	-	-	-
	2	10	20	5	-	-	-	-
	3	10	30	10	-	-	-	-
Champion Merit	1	3	30	15	5	-	-	-
	2	3	60	30	10	-	-	-
	3	3	100	50	15	-	-	-
	4	3	150	75	20	-	-	-
Supreme Merit	1	3	60	-	30	5	-	-
	2	3	120	-	60	10	-	-
	3	3	200	-	100	15	-	-
Skill Shard	1	10/month	20	20	3	-	-	-
Skill Jewel	1	5/month	50	-	20	3	-	-