Sangonomiya Kokomi

Sangonomiya Kokomi

★★★★★
Hydro
Catalyst
Off-Field
Support
Survivability
Builds Update5.5
Teams Update5.5

Best Artifacts

(2) Increases Elemental Mastery by 80.
(4) The equipping character's Bloom, Hyperbloom, and Burgeon reaction DMG are increased by 40%. Additionally, after the equipping character triggers Bloom, Hyperbloom, or Burgeon, they will gain another 25% bonus to the effect mentioned prior. Each stack of this lasts 10s. Max 4 stacks simultaneously. This effect can only be triggered once per second. The character who equips this can still trigger its effects when not on the field.
(2) Increases Elemental Mastery by 80.
(4) Within 8s of triggering an Elemental Reaction, the character equipping this will obtain buffs based on the Elemental Type of the other party members. ATK is increased by 14% for each party member whose Elemental Type is the same as the equipping character, and Elemental Mastery is increased by 50 for every party member with a different Elemental Type. Each of the aforementioned buffs will count up to 3 characters. This effect can be triggered once every 8s. The character who equips this can still trigger its effects when not on the field.
(2) Increases Elemental Mastery by 80.
(4) Within 8s of triggering an Elemental Reaction, the character equipping this will obtain buffs based on the Elemental Type of the other party members. ATK is increased by 14% for each party member whose Elemental Type is the same as the equipping character, and Elemental Mastery is increased by 50 for every party member with a different Elemental Type. Each of the aforementioned buffs will count up to 3 characters. This effect can be triggered once every 8s. The character who equips this can still trigger its effects when not on the field.
(2) Increases Elemental Mastery by 80.
(4) Increases Charged Attack DMG by 35% if the character uses a Catalyst or Bow.
(2) Healing Bonus +15%.
(4) When the character equipping this artifact set heals a character in the party, a Sea-Dyed Foam will appear for 3 seconds, accumulating the amount of HP recovered from healing (including overflow healing). At the end of the duration, the Sea-Dyed Foam will explode, dealing DMG to nearby opponents based on 90% of the accumulated healing. (This DMG is calculated similarly to Reactions such as Electro-Charged, and Superconduct, but it is not affected by Elemental Mastery, Character Levels, or Reaction DMG Bonuses). Only one Sea-Dyed Foam can be produced every 3.5 seconds. Each Sea-Dyed Foam can accumulate up to 30,000 HP (including overflow healing). There can be no more than one Sea-Dyed Foam active at any given time. This effect can still be triggered even when the character who is using this artifact set is not on the field.
This set can do more damage than other options in certain situations, while also increasing Kokomi's healing to deal with Bloom self-damage. However, this set is very resin inefficient and is thus not recommended to farm specifically for this set.

Best Stats

Sands
Elemental Mastery
Goblet
Elemental Mastery
Circlet
Elemental Mastery
Substats
Elemental Mastery / Energy Recharge / HP% / HP

Best Weapons

Base ATK542
Elemental Mastery+265
SourceEvent Wish
Offering Unto Wind and Sun
Increases Elemental Mastery by 100~200. Gain the "Mirror of Night" effect within 15s after the equipping character creates a shield: The current active party member deals 28~56% increased DMG to nearby opponents. You can gain the "Mirror of Night" effect once every 14s.
Base ATK542
Elemental Mastery+265
SourceEvent Wish
A Thousand Nights' Dawnsong
Party members other than the equipping character will provide the equipping character with buffs based on whether their Elemental Type is the same as the latter or not. If their Elemental Types are the same, increase Elemental Mastery by 32~64. If not, increase the equipping character's DMG Bonus from their Elemental Type by 10~26%. Each of the aforementioned effects can have up to 3 stacks. Additionally, all nearby party members other than the equipping character will have their Elemental Mastery increased by 40~48. Multiple such effects from multiple such weapons can stack.
Base ATK542
Elemental Mastery+265
SourceEvent Wish
Bathhouses, Hawks, and Narukami
Elemental Mastery increases by 120~240 for 6s after triggering Swirl. Elemental Mastery increases by 96~192 for 9s after the wielder's Elemental Skill hits an opponent. Elemental Mastery increases by 32~64 for 30s after the wielder's Elemental Burst hits an opponent.
Base ATK454
Elemental Mastery+221
SourceWish
Composed
After dealing damage to an opponent with an Elemental Skill, the skill has a 40~80% chance to end its own CD. Can only occur once every 30~16s.
Base ATK354
Elemental Mastery+187
SourceWish
Bane of Storm and Tide
Increases DMG against opponents affected by Hydro or Electro by 12~24%.
Base ATK510
Energy Recharge+45.9%
SourceForging
Full Circle
Obtain the "Wax and Wane" effect after an Elemental Reaction is triggered, gaining 24~36 Elemental Mastery while losing 5% ATK. For every 0.3s, 1 stack of Wax and Wane can be gained. Max 5 stacks. For every 6s that go by without an Elemental Reaction being triggered, 1 stack will be lost. This effect can be triggered even when the character is off-field.