Infinite Authority (Legends)

Enchant creature Whenever enchanted creature blocks or becomes blocked by a creature with toughness 3 or less, destroy the other creature at end of combat. At the beginning of the next end step, if that creature was destroyed this way, put a +1/+1 counter on the first creature.

NM - $24.20
LP - $19.30
MP - $14.50
HP - $9.70
DMG - $4.90