Let's Become Rock Stars! Ryo Yamada (BTR/W107-E037SSP SSP) [BOCCHI THE ROCK!]

[AUTO] When this card attacks, choose 1 of your other "Music" characters, and that character gets +X power until end of turn. X is equal to the number of other "Music" characters you have ×500. [AUTO] At the beginning of your opponent's attack phase, if there is a character facing this card, you may move this card to an open position of your center stage.