Oona, Queen of the Fae

Flying
{x}{u/b}: Choose a color. Target opponent exiles
the top X cards of his or her library. For each
card of the chosen color exiled this way, put a
1/1 blue and black Faerie Rogue creature
token with flying onto the battlefield.
"Born of laughter, clothed in cheer, happiness
has brought you here."-Queen Clarion