The Black Horn (artifact)
The Black Horn is the legendary horn of the Sjalvolki God Velos, or at least it is claimed to be. The horn regularly appears in various culture's mythologies from all corners of the Aeras, always being used to, in some form, call forth spirits for war but killing the blower in the process. The horn makes distinction, the one who orders its use is to be killed, not the one who blows it.