Karthus, Black Mage

Whenever Karthus dies, if it isn't a token, create a token that's a copy of it, except it's a Colorless 1/1 Spirit Wizard.
{2}{u}{b}{r}{t}: Sacriface a creature, Karthus, Black Mage deals damage equal to that creature's power or thoughness to each opponent or each creature your opponents control.