Mark of the Unkilling

Kicker {b}{b}{g} (You may pay an aditional
{b}{b}{g} as you cast this spell.)
Exile target creature with 0 power. Draw a card.
If this spell was kicked, exile any creature
instead.
"Burned by tears or torn by screams, you must
bear it, never decaying, for all eternity," -Izudia,
Omen of Unkilling.