Becoming the Joke

Enchanted creature becomes a blue, black,
and red Jester.
You control enchanted Jester for as long
as you control Becoming the Joke.
{4}: The controller of the enchanted creature
sacrifices this creature and gains mana equal to
the mana spent to activate this ability, at the
beginning of their next upkeep. Any player
may activate this ability and only as a sorcery.