Prison Term
Enchantment — Aura
Enchant creature
Enchanted creature can't attack or block, and its activated abilities can't be activated.
Whenever a creature an opponent controls enters, you may attach this Aura to that creature.
Printings & Conditions (4)
Commander 2011 (CMD)(Commander)#27Uncommon
Planechase (HOP)(Planechase)#6Uncommon
Shadowmoor (SHM)(Shadowmoor)#18Uncommon
The List (PLST)(The List)#SHM-18Uncommon