Gareth, Thrull Stitcher

Whenever a thrull enters the battlefield under
your control, draw a card.
{t}: Exile target creature card in any graveyard,
create a 1/1 White Thrull creature token.
{t}: Exile target creature card in your hand,
create a 2/2 White Thrull creature token.
{t}: Exile target creature you control, create a
3/3 White Thrull creature token.
She will come back to me...