Eidolon (Drug)

Eidolon is the name of a drug that, when taken, grants you access to your Eidolon. It is bright orange and usually comes in vials.

Season 1
In Season 1, Eidolon consists of human blood, taken from Ronnui, a Master of The Estate.

Season 2
In Season 2, Eidolon consists of demon blood, taken from Mephistopheles, a Spear of Hell.