A little bit of lore about the crystal weapon:

There is a forge where you can create magical weapons. Magical weapons are alive, and if they are created in this forge, it will have incredible features, for example, to light a path in the dark or to light up enemies in flames.

Magical weapons that are created in the forge, use the blood of two warriors. The blood is the only component.

I this case Cuicatl and Citlaleztli (https://www.furaffinity.net/view/52402716/) used their blood, and they created twin weapons.

Cuicatl's weapon looks like a piece of attached to some kind of gloves, but that crystal can take the shape of any weapon or shield that she can imagine. The weapon will only allow Cuicatl to wield it.

Artwork by the amazing  ametat42 please check their profile.

Link to the original submission:https://x.com/Ametat2/status/1824090878782140855?t=ZgblNKudvpnip3inIhX1Aw&s=19