Runes

Runes are characters of complex and archaic writing systems which grant various abilities when written by mortals. Each deity and greater demon has their own set of runes, which are the inscribings of their own ancient language. Each set of runes grants abilities related to their deity, making it efficient to study runes different kinds.

Runes can only be drawn using talismans. When drawn, the talisman punctures the skin with a divine toxin which is used to draw the rune. The rune's color depends on which language it comes from. When the rune is used, the rune does not change, but the toxin does begin to fade. The toxin that fades away begins to travel through the body, stretching towards the heart. The more it stretches, the more damage the wearer takes physically and mentally.