Indicates important notes at the bottom of the page.

Weapons

Highlighted weapons are free options.

1 (3 ★)
2 (4 ★)
(4 ★)
3 (4 ★)
4 (4 ★)

Artifact Sets

1
2
3
4
5
6
+15% Healing Bonus set (2)
+20% HP set (2)
[Choose Two]

Artifact Stats

Main Stats

Sands Energy Recharge / HP%
Goblet HP%
Circlet Healing Bonus / HP%

Substats

1 Energy Recharge
2 HP%
3 ATK%
4 Flat HP

Talents

1 Skill
2 Burst

Notes

Support Sangonomiya Kokomi focuses on just using her Burst before her Skill's duration ends to refresh her Skill duration. This allows 100% uptime on Hydro application from her Skill for Freeze / Electro-Charged teams.

Sangonomiya Kokomi's Burst dynamically alters her Skill's damage, this means that you cannot use her Burst to snapshot the buff onto the Skill and swap out.

Regarding Weapon Choices:

Hakushin Ring: This weapon can provide Elemental DMG% for the team in Electro-Charged teams and will outperform if you value damage more than healing.
Sacrificial Fragments: Can be useful as Sangonomiya Kokomi won't need to use her Burst to reset her Skill duration. This allows for smoother rotations as she will not face the problem of missing out on the reset for her Skill due to not casting Burst in time.

Regarding Artifact Choices:

Main Stats are not important for (4) if you do not need the extra healing. Focus on Energy Recharge substats instead.

Sets

Tenacity of the Millelith (4): With proper extension of Sangonomiya Kokomi's Skill, she can maintain near 100% uptime on this artifact set's 4 piece effect.
Ocean-Hued Clam (4): This ranking assumes Sangonomiya Kokomi is being used only for her Skill. If she is being used to attack onfield during Burst, this set may overtake (4).

Main Stats

Energy Recharge: Prioritise first to ensure you can always use Burst before the Skill expires in order to maintain Hydro application.

Substats

Energy Recharge: Prioritise first to ensure you can always use Burst before the Skill expires in order to maintain Hydro application.