M Aggron EX (Primal Clash #94)
Set Name: XY - Primal Clash
Card Number / Rarity: 94 / Ultra Rare
Card Type / HP / Stage: Metal / 240 / Mega
Card Text: When 1 of your Pokemon becomes a Mega Evolution Pokemon, your turn ends.
Attack 1: [MM2] Megaton Slam (120+)
You may flip a coin. If heads, this attack does 120 more damage. If tails, this attack does 20 damage to each of your Benched Pokemon. (Don't apply Weakness and Resistance to Benched Pokemon.)
Weakness / Resistance / Retreat Cost: Rx2 / P-20 / 4