Black-Winged Necrotic Dragon

Flying, Haste
This creature costs {2} less for each card
that has been sent to the graveyard this turn.
During your upkeep if this card is in
your graveyard, you may discard 2 cards,
then draw 1.
You may cast this card from
your graveyard only once per turn, and
if you do this card gains "if this card
would destroyed, exile it instead".