Rizivim, Wise Necromant

Flying
{2}: Return target creature card from your
graveyard to the battlefield and sacrifice it at
your next end step. It gains haste. Then have
target opponent put the top 4 cards of their
library into his or her graveyard. You may exile
one of those cards if you pay {1}{b}{u}. You may
play this ability only once each turn and as a
sorcery.