MAJOR SPOILERS FOR 4.X

Summer Pockets anime x HSR collab

Collab 5* char:
Shiroha
Path of Enigmata, abilities are related to time
Can use any light cone
Extremely for (you), more than Firefly or Cyrene
Lots of rainbow butterflies in ability animations

Actually a meme like Gallagher that copied the appearance of Naruse Shiroha, the main heroine of Summer Pockets, and not Naruse Shiroha herself (because she's literally canonically married and has a child at the end of Summer Pockets, which would obviously significantly decrease sales since she wouldn't be for (you), and using her time powers would also kill her)

Ability:

Skill:
>they rolled for a worm
Dispels a debuff from a single ally character, allows them and their summon to immediately take action, and increases their DMG by 50%—100% for 1 turn(s).
When Shiroha uses this ability on characters following the Path of Harmony, the "immediate action" effect cannot trigger.

Ultimate:
Turn Lies Into Reality
All teammates (i.e., excluding this unit) immediately take action, regenerate Energy by an amount equal to 15%—30% of their respective Max Energy, and have their CRIT DMG increased by an amount equal to 20%—40% of Shiroha's CRIT DMG plus 10%—20% for 2 turn(s).

Talent:
Future Sight
When using Skill, increases the target's CRIT Rate by 20%—32%, lasting for 3 turn(s).

Technique:
Fake Leaks
After using Technique, creates a Special Dimension around the character that lasts for 15 seconds. Enemies within this dimension will not attack Shiroha and will follow Shiroha while the dimension is active.
After entering battle with enemies in this Special Dimension, there is a 100% base chance to reduce each single enemy target's DEF by 100% for 2 turn(s). Only 1 Dimension Effect created by allies can exist at the same time.

Source: Shiroha Leaks