Staff of Ainz Ooal Gown

{x}{x}: You may cast a spell from your graveyard
with mana value X. If an instant or sorcery spell
cast this way would be put into the graveyard,
exile it instead. Activate this ability only if this
card is equipped to a creature.
{1}: Permanents your opponents control lose
hexproof and indestructible until end of turn.
Can only be equipped to an Elder creature.
Equipped creature gets +1/+3.
Equip {3}