Cao Fang, Dark Magician

At the beginning of combat you may sacrifice
Cao Fang, Dark Magician, if you do, until the
next end step, if you would create one or more
creature tokens, that many 5/5 Black Demon
creature tokens are created instead.
"My eldest son was a degenerate and a traitor,
perhaps in death he can better serve our eternal
empire." - Empress Cao Ma