Exclusion Ritual

Enchantment

Imprint — When this enchantment enters, exile target nonland permanent.
Players can't cast spells with the same name as the exiled card.

"Your desires have become our discretion."
—Izathel, priest of the Annex

2011-06-01 If the exiled card somehow leaves exile, the last ability will no longer have any effect.
2011-06-01 In a Commander game, a player may put their commander in the command zone once exclusion ritual's triggered ability has finished resolving. If this happens, Exclusion Ritual's last ability will have no effect.

Card is in preconstructed decks:

mtg.wtf