Lucario & Melmetal GX (Full Art)

Steel Fist (50)
Search your deck for a Metal Energy card and attach it to this Pokemon. Then, shuffle your deck.

Heavy Impact (150)

Full Metal Wall GX
For the rest of this game, your Metal Pokemon take 30 less damage from your opponent's attacks (after applying Weakness and Resistance). If this Pokemon has at least 1 extra Energy attached to it (in addition to this attack's cost), discard all Energy from your opponent's Active Pokemon. (You can't use more than 1 GX attack in a game.)