Golden Ichor

Golden Ichor is a mythical substance, rumoured to be the blood of the gods.

Healing properties
Adversely to Black Ichor, golden Ichor can cure any disease, poison, or spiritual ailment; but it cannot heal wounds of the flesh.

Additionally, the substance actively tries to smite the unholy and the soulless, showing particular malice towards Diabulus. When it comes into contact with the flesh of the aforementioned groups, it begins to actively digest and melt them.

Relation to Black Ichor
It has been theorised that black and golden Ichor are actually the same substance; the former being a corrupted and tainted version of the latter. If such a thing is true, no way of synthesising either has ever been found; and no method of creating such a "corruption" has been revealed.

"blood of the gods" lore explained by author
To avoid stomping all over other people's canon, the creator of the substance decreed that golden Ichor was not, in fact, the blood of the gods; and that this was simply an old Azarathian myth, brought on by the similar colour and properties of their deity's own blood.

Golden Ichor's origin and intended purpose has yet to be revealed; but it is likely that the Ohana will have the chance to reveal s information in EoC.