Mirage, Deceitful Illusionist

Whenever you cast an instant or sorcery spell,
you may pay {u}{r}. If you do, copy that spell.
You may choose new targets for the copy.
Whenever another nontoken creature enters the battlefield under your control, you may pay {g}{u}. If you do, create a token that's a copy of
that creature.
Alakzam, alakazo, a goose now are you!