No more magic.

Destroy all Enchantments, Druids, Mystics, Spellshapers, Unicorns, Warlocks, and Wizards.
Until the end of your next turn, no more
Sorceries, Instants, or Enchantments may be cast.
It came like a storm. Nobody saw it coming, nobody
knew where they came from. But in an instant, the
Wizards were dead, and they now set their rule of law
over all.
Their edict was simple: "No more magic."