Miysa, Spectral Summoner

Whenever you cast an instant or sorcery
create a 1/1 Snake illusion creature token
with "Whenever an opponent targets this
creature with a spell or ability, fateseal 1."
(To fateseal, look at the top card of an opponents
library, then put that card on the top or bottom of that players library.)
{u}{u}: Change the target of a spell or ability an
opponent controls to a creature you control.