Yagami, Capricious Illusionist

Yagami, Capricious Illusionist gains +1/+1 for each Illusion you control.

{2}{u}{u}: Create a X/X blue Illusion creature token, where X is the number of cards in your hand. It has "When this creature becomes the target of a spell, sacrifice it."

{x}, {t}: Copy target instant or sorcery spell you control unless an opponent pays {x}.