First of all, needs rewording, like so: "Place in territory for 2 turns: restrict players from using draw abilities. Cannot be interrupted."
Second of all...it's kind of boring. How about adding a little more excitement? For example, "Place in territory: When a player uses a draw ability, he must place X cards beneath deck. Cannot be interrupted. (X = # of good brigades of player)"
Possibly interesting with Demons, supports defense in general (probably making it evil), and punishes mostly multi offenses. Also, sticks around.