Shixeus, God of Vizards

Indestructible
Whenever you cast a noncreature spell, put the
top card of your library onto the battlefield face
down. It is a 2/2 creature named Masked One.
You may look at that card at any time and you
may cast it if it's a noncreature spell.
{b}{b}, {t}: Target creature gets -X/-X where X is
the number of Masked Ones you control.