Zira, Bloody Necromancer

When Zira, Bloody Necromancer enters the battlefield, create two 1/1 black Bat creature tokens with flying.
{1}, Exile a creature card from your graveyard: Create a 1/1 black Bat creature token with flying.
{2}{b}: Shuffle a creature card exiled with Zira
into its owner's library. Until end of turn, target Bat becomes a copy of that card.