Sandslash (61/123) [Diamond & Pearl: Mysterious Treasures]

[1] Spike Armor - During your opponent's next turn, if Sandslash is damaged by an opponent's attack (even if Sandslash is Knocked Out), put 4 damage counters on the Attacking Pokemon.

[1FF] Poison Spike (60) If the Defending Pokemon already has any damage counters on it, that Pokemon is now Poisoned.