Quazus, Cosmic Infernal

Hexproof, Indestructible
You may summon Quazus, Cosmic Infernal onto
any player's battlefield, that player gains control
of it until it leaves the battlefield
Quazus, Cosmic Infernal can't attack or block
When a player gains control of Quazus, Cosmic Infernal that player flips all face up lands they
control face down. Face down lands they control
have "{t}: The next spell you cast can't be
countered and costs {p/b}{p/g}{p/u} instead of its normal
mana cost"