Unknown Bone

''A bone (?) we picked up from the hidden cave in Raptured Falls. It's made of some sort of organic material as verified by Liv from Stygian Academy and has some odd properties that I'll detail below, but we don't really know much else.''

History
''Nothing yet. We don't know anything about its history, nor where it came from. Hell, we don't evne know what it is. Only thing I can say is that we found it after solving an elaborate puzzle hidden underneath the Cave of Stars in Raptured Falls. Why was it hidden so carefully? Why did my sword fit into the recess that unlocked it? Who knows. Perhaps one day we'll get answers, but I'm not holding my breath.''

Appearance
''A weird artifact of a grey-white color spanning about 25 centimeters in length. It is smooth to the touch and not as dense as it would appear. It is still heavy, don't get me wrong, but its not as hefty as one might expect from such an item of its size. It is fairly thick, as none of us can really wrap a hand completely around it. What stands out the most to me is its pristine condition, seeming to be near flawless in its form; no chips, no dents, no carvings. Though, it has been kept under a cave for god knows how long, so that's probably the reason.''

Uses
''At first, it doesn't seem like this bone has much use. But Liv showed us something spectular. With a hand on the bone, she was able to cave in a wall of the lab and then pull it out with the force and precision I had never seen from any Earth Elementalist. Phina then used it against Lazlow, saving Liv's life. Doing so causes the bone to emit an ethereal orange glow that envelops the artifact and the user. However, there is something to note: doing this heavily strains the user's body, causing visible exhaustion on Phina after she used it. At least for now, I can determine its use as follows:''


 * By touching the bone, the user is granted an expert use of (currently) Earth powers. Able to rend a wall and restore it with nary a trace, or shift the ground beneath with only a thought, it's power seems limitless. However, doing so causes immense strain on the user's body, causing them to feel exhausted and possibly even come to harm if used too much.

Bears experimenting, but perhaps when we're not embroiled in complex politics or being chased by a group of anti-elementalist maniacs.