Green Lantern's Ring

Whenever this artifact enters the battlefield, Gain {e}{e}{e}.
{e}{e}{e}{e}{e}{e}, Return Green Lantern's Ring to
your hand: Search your library for a non-creature spell, Exile it. You may cast that spell this turn, without paying it's mana cost.
Equiped creature gets +0/+1 and hexproof.
Equip {1}