Alolan Sandslash GX

Ability: Spiky Shield

If this Pokémon is your Active Pokémon and is damaged by an opponent’s attack (even if this Pokémon is Knocked Out), put 3 damage counters on the Attacking Pokémon.

This attack does 100 damage to each of your opponent’s Pokémon that has any damage counters on it. (Don’t apply Weakness and Resistance for Benched Pokémon.) (You can’t use more than 1 GX attack in a game.)