Lusat's Glinstone Crown

Whenever this artifact becomes unattached from
a permanent, sacrifice that permanent.
Equipped creature gets -1/-1, has ward {8}, and
"{t}: Scry 1, then reveal the top card of your
library. If it's an instant or sorcery card, you may
cast it without paying its mana cost."
Equip Wizard {1}
Equip {8}