Arboriform

{t},Sacrifice this artifact: Add one mana of any color.

"Arboriform are white root-like structures found throughout Orokin structures. They appear to be some kind of organic energy and/or information-carrying material. Based on its presence within Orokin Towers, notably attached to machinery, it seems to at least provide a form of energy, possibly void energy based on its presence not only in towers but also within Lua and the Tenno Reservoir hidden within."