Known as Sanguis Telluris or 'Blood of the Earth', it is a shapeshifting and energy rich substance which seems to be present in all materials, lifeforms, and substances found on the world of Eideon. Its various forms are the basis for the energy infrastructure of the planet's civilizations and its manipulation and alteration through living beings into more exotic forms and forces acts as the world's catalyst for extra-natural/supernatural abilities.

• Sanguis - The most common term used to refer to the ambient energies known as 'Sanguis Telluris' and the term used to refer to the ambient or gaseous form of ST.
  • Sangulith - A solidified form most often found in crystalline structures in vast underground deposits, using special processes it can be burned as is for a source of energy, processed into a powder for other uses, or refined into the next form of Sanguis.
  • Sangolas - A liquid form that can be found underground in deposits and is theorized to be the condensed form of Sanguis before the substance eventually begins to solidify and grow the crystalline structure it's solid form. This is the preferred form for industrial and artesian use.

Effectively one's source of magical energy that they draw from within their body, it is gradually replenished by either rest, not using their abilities, or by consuming food or drink imbued with finely processed Naphtha.