Prison Term

Enchantment - Aura, 1WW (3)
Enchant creature
Enchanted creature can't attack or block and its activated abilities can't be activated.
Whenever a creature enters the battlefield under an opponent's control, you may attach Prison Term to that creature.¹
Clear out the cell. Bring in the next prisoner.
Illus. Zoltan Boros & Gabor Szikszai

Gatherer Card Rulings [Nov 2009]

• 5/1/2008: The last ability works only if Prison Term is already in play. You may move it from the creature it's currently enchanting onto the new creature.

Format Legality	Legal in Vintage, Legacy, Extended Banned in Standard
Printings (1/10)	Shadowmoor (Uncommon)