M_SWAMPERT_EX_XY87:XY_PROMOSStrongarm Impact130+
You may do 30 more damage. If you do, discard the top 3 cards of each player's deck.
weakness:x2
resistance: none
retreat cost:3
When a Pokémon-EX has been Knocked Out, your opponent takes 2 Prize cards. When 1 of your Pokémon becomes a Mega Evolution Pokémon, your turn ends.