Mexi, Mage Enigma

Flash
When Mexi, Mage Enigma enters the battlefield, create 1/1 blue wizard creature token for each
instant and sorcery you've cast this turn.
{1}{b}{r}{t}, sacrifice a wizard: you may cast an
instant or sorcery spell from your graveyard this
turn. If that spell would go to the graveyard, exile
it instead.