Maractus - JTG 008/159

Card Text:

Ability: Exploding Needles

If this Pokémon is in the Active Spot and is Knocked Out by damage from an attack from your opponent's Pokémon, put 6 damage counters on the Attacking Pokémon.

[C] Corner - 20

During your opponent's next turn, the Defending Pokémon can't retreat.