The guardian is a mana symbiote long forgotten by history, almost all knowledge having been lost to the careful work of the Sabisians. The rare few scholars that still hold existing records of these beings believe them to long be extinct, lost to mana wars passed long since and the Sabisian incursion.

While in its docile state, the Guardian appears as a crystalline growth connected directly to its hosts nervous system through the spinal cord, easily being visible to the naked eye underneath the skin, alongside visible patches of mana-crystalline material left in patches above the skin containing it. While in its docile form, the guardian remains in a sort of dormant state, co-existing with its host and feeding off of its body.

During its active phase, the Guardian appears to burst out of body of its host. Despite this appearance, this process is all but a trick of the eyes, in reality being no more than an energy transference as the Guardian takes form, leaving behind no actual wounds on the host's body. The crystalline being seen during its active phase is not in reality the entity's true form, that being the crystaline growth located inside the host. Henceforth, destroying the active entity does little but return it back into its primary shell, where it can recover.

In appearance, during the active phase, the Guardian is a large, several meters tall crystalline biomechanical creature. It is composed of a long lanky crystalline 'spine' flanked by long sharpened shards that it uses to strike at the enemy or otherwise carry out its commands. When out of range, it uses a head-like appendage, which it can seemingly use to see, to fire a directed burst of energy.

The Guardian forms a bond with its host during the symbiotic period, carrying out their commands on its own free will, in exchange, the host provides it safety and nutrition.