BiS (Make Farewells More Beautiful - 5*)

Engrave

Increases the wearer's Max HP by 30% / 37.5% / 45% / 52.5% / 60%. When the wearer or their memosprite loses HP during their own turn, the wearer gains "Death Flower," which allows the wearer and their memosprite to ignore 24% / 25.5% / 27% / 28.5% / 30% of the target's DEF when dealing DMG, lasting for 2 turn(s). When the wearer's memosprite disappears, advances the wearer's action by 12% / 15% / 18% / 21% / 24%. This effect can only trigger up to 1 time, and the trigger count resets every time the wearer uses Ultimate.

⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤ʚɞ⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤

2nd Best Option (Sweat Now, Cry Less - 4* BP)

Come Train!

Increases the wearer's CRIT Rate by 12% / 14% / 16% / 18% / 20%. When the wearer's memosprite is on the field, increases the wearer and their memosprite's DMG dealt by 24% / 27% / 30% / 33% / 36%.

⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤ʚɞ⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤⏤

3rd Best Option (The Flower Remembers - 4* BP)

Interdependence

Increases the wearer's CRIT DMG by 24% / 28% / 32% / 36% / 40% . The CRIT DMG dealt by the wearer's memosprite increases by 24% / 30% / 36% / 42% / 48% .