Prison Term
Shadowmoor — uncommon
Enchantment — Aura
Prison Term rulings:
2016-06-08: Activated abilities contain a colon. They’re generally written “[Cost]: [Effect].” Some keywords are activated abilities and will have colons in their reminder text.
2008-05-01: The last ability works only if Prison Term is already on the battlefield. You may move it from the creature it’s currently enchanting onto the new creature.