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 - $21.90
LP - $17.50
MP - $13.20
HP - $8.80
DMG - $4.40