Marau, The Izzet Inferno

Flying, hexproof, vigilance
Every time you play a sorcery or instant
spell, you may exile up to 5 cards from
your graveyard. Then, you may cast
sorcery, instant or enchant spells out
of exile. (Additional costs still apply)
"Living up to the work of Niv-Mizzet is
not easy, however, I make it look easy."