Mask of overflowing

Mask of overflowing can't be sacrificed.
Equiped permanent can't be sacrificed.
Whenever you tap equiped permanent, you may
exile the top card of your library. If a permanent
was exiled that way, each player sacrifices a
permanent that shares that permanent's type.
Put the exiled card into your hand at the next end
of turn.
Equip Permanent {1}