Witherscale Wurm SHM/134

Set: Shadowmoor
Collector Code: SHM/134
Name: Witherscale Wurm
Type: Creature — Wurm
Oracle text: Whenever this creature blocks or becomes blocked by a creature, that creature gains wither until end of turn. (It deals damage to creatures in the form of -1/-1 counters.) Whenever this creature deals damage to an opponent, remove all -1/-1 counters from it.
Rarity: Rare