Alhammarret, High Arbiter [Magic Origins Promos]
|Set:||Magic Origins Promos|
|Type:||Legendary Creature — Sphinx|
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).