Alhammarret, High Arbiter

Alhammarret, High Arbiter

Legendary Creature - Sphinx | Power/Toughness: 5 / 5 (CMC 7)
Flying
As Alhammarret, High Arbiter enters the battlefield, each opponent reveals their hand. You choose the name of a nonland card revealed this way.
Your opponents can't cast spells with the chosen name (as long as this creature is on the battlefield).