Ranga (039) (UEPR/TSK-2-039) - UE20BT That Time I Got Reincarnated as a Slime Release Event Cards

[When Attacking] Choose one of the following:
• If "Rimuru" is on your field, this character gains 500 BP until the end of the turn.
• If "Gobta" is on your field, this character gains 500 BP until the end of the turn.