$0.24

Curse of Predation 

Enchantment — Aura Curse
Commander 2013 Uncommon
Enchant player
Whenever a creature attacks enchanted player, put a +1/+1 counter on it.
Whenever a creature attacks enchanted player, put a +1/+1 counter on it.
"Hunters feed on the fear of their prey."—Garruk Wildspeaker
#140 — Illus. Jack Wang