Yanmega

Once during your turn (before your attack), if Yanmega is your Active Pokémon, you may search your discard pile for a Grass Energy card and attach it to Yanmega. This power can't be used if Yanmega is affected by a Special Condition.

Wind Return

20+

You may return all Grass Energy attached to Yanmega to your hand. If you do, this attack does 20 damage plus 20 more damage for each Energy card you returned.