Registeel

Once during your turn (before your attack), you may discard 2 cards from your hand. Then, remove 3 damage counters from Registeel. This power can't be used if Registeel is affected by a Special Condition.

You may discard an Energy card attached to Registeel. If you do, search your discard pile for an Energy card (excluding the one you discarded) and attach it to Registeel.