A sword containing the mind of a legendary general, and very picky who may wield it.
A highly modular suit of power armor.
Candles aren’t just for lighting, anymore.
Because the Mind is a Muscle, too.
A set of stones which bring trouble wherever they go.
The Ghorish Maw is used by the Ogre Tribes which live in the Ghor Mountains, named after a legendary Ogre Chieftain who once resided there. Known for his love of eating, these are the weapons he armed his warriors with.
When you sleep, your soul briefly returns to the place where it was created/goes to when it dies, and seeks nourishment. Everybody's soul is created with a little link (or you could say a greater entity calls it back) to that place so that it can return easily, but upon death, the soul returns via that and annihilates the link as if returns.
Also, as an added thingy, you could say the entity supplying the link, or residue of the links themselves, (whichever) is the source of all arcane power.