New donation card. Careful, it's poisonous

The Noxious Ring
An ancient conjuration favored by reclusive necromancers, the Noxious Ring owes it's creation to Lord Noxarak, a Necromancer of the Fifth Circle, over 10,000 years ago. Seeking a way to prevent attacks to his tower, and to prevent those who he held captive to escape, he created a ring of poison fumes over 5 miles in diameter. The ring, held from dispercing by strong magics, doomed anyone who dared attack his castle from the ground to a slow and painful death. The acidic nature of the poison, and it's necropotence, left nothing, not even constructs or angels, able to resist it's damaging power. The only thing that could get past Noxarak's barrier were flying creatures, but even they felt the sting in their lungs once he imbued the cloud with a form of basic sentience allowing it to send cloudy tendrils at those who hope to fly over or under the massive ring.