Black Elves Justice

Enchant creature.
You gain control of enchanted creature.
Enchanted creature can't attack or defend and it
gets -4/+0 and gains: "{b}, {t}: Sacrifice this
creature. Add an amount of {b}, {r}, or {g}
equal to this creature toughness."
"Eberrick life came to an end, a life of pilfering and
kidnapping. avenged by the black elves of Erulun"