Metagross

Once during your turn (before your attack), you may flip a coin. If heads, switch 1 of your opponent's Benched Pokémon with 1 of the Defending Pokémon. This power can't be used if Metagross is affected by a Special Condition.

Extra Comet Punch

50

During your next turn, Metagross's Extra Comet Punch attack's base damage is 100.