Divination Sink

DESCRIPTION
A large circular piece of blue glass measuring about 5 feet in diameter, and standing about two feet tall. It’s slightly see-through, though the deep coloring prevents it from being usable as a kind of lens.

Originally created by now defunct Black Circle, a cult dedicated to a powerful divinatory entity of the same name, the Divination Sink is a magical artifact created as the ultimate counter to divination magic.

Within a ¼ mile radius of the object, no Divination spell can be cast. If such a spell is attempted within the radius, it seems to go normally, but as soon as it is released, it dissipates without providing anything. Additionally, anything (living or not) within the radius cannot be the target of any Divination spell regardless of where the spell was cast. If something attempts to scry anything within this radius, the spell fails the same as if the caster were near the Divination Sink.

The only exception to the Divinatory nullifying effect of the Divination Sink is a Divination spell powered by the Black Circle or a related entity, though the Black Circle has not existed in many years...

DESTRUCTION
The Divination Sink works on the concept of using Law aligned magic to institute anti-divinatory rules in the affected area. As such, the only way to destroy it is to bring the Divination Sink to the Plane of Infinite Chaos and cast both Dispel Magic and Break Enchantment on it. Doing so invariably causes everyone within 100 yards to fail their concentration checks and completely destabilizes the area as everyone stops stabilizing the area at the same time.