Ensifura, The Cremator

Delve (Each card you exile from your graveyard
while casting this spell pays for {1}.)
Flying, Haste
Whenever Ensifure attacks, choose target card in
your graveyard. If that card is a creature, return
that creature to the battlefield tapped and
attacking. If that card is a land, exile it and add
{b}{r}{g} to your mana pool at the beginning of
your next main phase. If that card is an instant
or sorcery, exile it and destroy target
permanent.