Naerth Maxildinarr, the Spy

Menace
Whenever you cast a noncreature spell,
target opponent must either discard a card
or mill 1. Exile a card from their graveyard.
You may play it until the end of your next
turn. Activate only as a sorcery
"The Zhentarim will tighten it's grasp on Ten-Towns, Rime or no."