潜伏工作員の悪知恵 (Sleeper's Guile) (ja)
Enchantment - Aura
(CMC 3)
Enchant creature
Enchanted creature has fear. (It can't be blocked except by artifact creatures and/or black creatures.)
When Sleeper's Guile is put into a graveyard from the battlefield, return Sleeper's Guile to its owner's hand.