Suppose Player A has a Buzzwole (FLI 77). Both players have 4 prizes remaining, and Sledgehammer knocks out Player B's active Pokémon-GX by doing 120 damage, taking Player A to 2 prizes remaining. Player B then promotes Mimikyu (GRI 58) and announces Copycat. Whose prize cards are considered when copying Sledgehammer? Does it deal a base damage of 30 or 120 in the instance?