Allusion Illusion

Scry 2, then reveal the top card of your library. If
it's a creature card, put it onto the battlefield.
That creature is a blue Illusion in addition to its
other colors and types and has "When this
creature becomes the target of a spell or ability, sacrifice it." If it's a noncreature card, put it into
your hand.
A person's mind unconsciously keeps track of every variable, alluding to a hundred possible outcomes;
rarely do they expect such outcomes to actually occur.