As long as you have more Prize cards left than your opponent, each of Hariyama's attacks does 20 more damage to the Active Pokémon (before applying Weakness and Resistance) and damage done by the Active Pokémon to Hariyama is reduced by 20 (after applying Weakness and Resistance).This attack's damage isn't affected by Resistance, Poké-Powers, Poké-Bodies,...
Once during your turn (before your attack), you may search your deck for Castform, Sunny Castform, or Snow-cloud Castform and switch it with Rain Castform. (Any cards attached to Rain Castform, damage counters, Special Conditions, and effects on it are now on the new Pokémon.) Shuffle Rain Castform back into your deck. You can't use more than 1...