Lamp of Imprisonment

When Lamp of Imprisonment enters the battlefield, exile target creature.
{5}, {t}: Target opponent gains control of Lamp
of Imprisonment. Then, create a token that is a
copy of the exiled card. It enters the battlefield
with three wish counters on it and has "At the beginning of your upkeep, remove a wish counter
from this, when the last is removed, sacrifice this
creature." Lamp of Imprisonment doesn't untap
for as long as the token is on the battlefield.