If your opponent has only 1 Prize card left and Regirock Star is the only Pokémon you have in play, this attack's base damage is 100 instead of 30.
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Artist
If your opponent has only 1 Prize card left and Regirock Star is the only Pokémon you have in play, this attack's base damage is 100 instead of 30.
Remove 1 damage counter from Regirock Star.