Marauding Strix

Flying, deathtouch
When Marauding Strix enters the battlefield
draw a card then discard a card then each player
chooses and sacrifices a creature that is not
Marauding Strix. Choose up to one creature in
any graveyard. Return it to the battlefield under
your control. That creature gains haste. Sacrifice
it at the beginning of the next end step.