Micanna, Incarnate Flame

Micanna, Incarnate Flame's power is equal to the number of instants and sorceries you have in your graveyard.
{r}{r},{t}: Deal damage equal to the number of
instants and sorceries you have in your graveyard
to any target. Exile all instants and sorceries
counted this way after damage is dealt.
If no instants or sorceries are cast during your
turn, transform Micanna, Incarnate Flame back
into Micanna, War Leader.