Kari Acta, Metallic Soldier

Mech-Augment {2}{c}{c}
As long as Kari Acta is augmented, she gets
+1/+2 and has Flying.
Whenever you cast a spell, target opponent exiles
the top two cards of their library. As long as you control four or more augmented creatures, you
may cast those cards from exile by paying mana
of any color to cast those cards.