Adri, Prodigious Illusionist

Partner with Hall of Mirrors.
Whenever you cast your second spell on each
turn, create a 1/1 blue Illusion creature token
named Adri's Cat.
{w/u}{u}, {t}: Exile target nonland card from your
graveyard with mana value equal or less than the
number of Illusions you control. Until end of
turn, you may cast a copy of that spell without
paying its mana cost.