Aluki, Arcane Whispers

Flying.
Whenever you cast an instant or sorcery spell, create a 1/1 white Spirit creature token with flying.
{3}{b}{r}: Exile up to two creature cards from your graveyard. For each card exiled this way, return that card to the battlefield under your control. Those creatures are Spirits in addition to their other types.

"With gestures charged with arcane power, Aluki opens the gates. From forgotten realms, spirits come at her bidding."