Summer Splash Party! Hoshimachi Suisei (SP) - hololive production Summer Collection Premium Booster (HOL)

[ACT] [(1) Put this card into your waiting room] Choose 1 "Towards the Shining Stage, Hoshimachi Suisei" in your waiting room, put it in the stage position that this card was in, and that character gets +X power until end of turn. X is equal to the number of "hololive" characters you have ×1000.