Outside of reaction teams where she can be a reliable trigger unit, Kuki Shinobu's damage contribution is usually insignificant. Hence her best usage case in those scenarios is building purely for utility.
Viable Weapons with WIP Calculations:
Viable Artifact Set with WIP Calculations:
Regarding Weapon Choices:
Favonius Sword: The passive lets her provide energy to the rest of the team. A CRIT Rate circlet or substats should be considered to reliably trigger the passive.
Freedom-Sworn: In teams where Kuki Shinobu can reliably trigger reactions, the teamwide buff from this weapon can make it preferable over .
Key of Khaj-Nisut:Highest possible healing in exchange for weaker utility. Worth considering in teams that can't reliably trigger reactions for or don't need extra energy particles from .
The Dockhand's Assistant: Similarly to , this weapon trades utility for stronger healing.
Regarding Artifact Choices:
Sets
Noblesse Oblige (4): When using this set, make sure to build enough Energy Recharge to cast Burst off cooldown and keep good uptime on this set's passive.
Instructor (4): Can be a cheap alternative on teams where the extra ATK% buff from (4) or (4) is not as useful.
The Exile (4): Can be a cheap alternative on teams where the extra ATK% buff from (4) or (4) is not as useful.
Ocean-Hued Clam (4): Provides a decent amount of extra damage on a full healing build.
Substats
CRIT Rate: Only recommended if using a Favonius weapon.
ⓘIndicates important notes at the bottom of the page.
This is a Dendro team that requires a reliable Electro trigger unit to work, for which Kuki Shinobu is one of the best Electro units to perform this role.
Aim for around 850-950+ Elemental Mastery. Depending on whether you use an Elemental Mastery weapon or not.
Regarding Weapon Choices:
Key of Khaj-Nisut: This becomes a better choice than at [C4] when you can gain the 3rd passive stack without extending your rotation time or taking extra field time. It can also net more Elemental Mastery than at 3 stacks, assuming you have actually built some HP% Substats on your Sands/Goblet/Circlet, but this is usually not enough to out-perform the overall gains from /'s respective passives.
Toukabou Shigure: This weapon performs very similarly in a Hyperbloom focused build to since its passive does not affect Hyperbloom damage.
Regarding Artifact Choices:
Substats
Elemental Mastery: Essentially your only priority.
Regarding Talent Choices:
Skill: Skill levels help with comfort but are not compulsory for a Hyperbloom build