Necroshade

Discard Necroshade: Draw a card. Lose 2 life.
Exile Necroshade from your graveyard: Reveal a
creature card, until end of turn, you may spend
mana as if it were mana of any type to cast that creature.
Escape—2{b}{b}, Exile three other cards from
your graveyard. (You may cast this card from your
graveyard for its escape cost.)