This trumpet adapts itself to its owner, so it produces either a good or an evil effect depending on the owner's alignment. If the owner is neither good nor evil, the horn has no power whatsoever. If he is good, then blowing the horn has the effect of a magic circle against evil. If he is evil, then blowing the horn has the effect of a magic circle against good. In either case, this ward lasts for 10 rounds. The horn can be blown once per day.
Caster Level: 7th
Prerequisites: Craft Wondrous Item, magic circle against good or magic circle against evil Market Price: 6,000 gp; Weight: 1 lb.