Alkahest Powder

Give to McCabe at Ward 13 to craft the Witchfire weapon mod.

Obtain by defeating Gwendil the Unburnt on Losomn.

Lore

Your nose can't make any sense of this powder. It smells like a hundred things at once and like nothing at all. It would seem the Dran have solved certain alchemical problems previously thought impossible.

"Impossible's just a word for something nobody's figured out yet. Everything was impossible once, but lots of things aren't anymore. Only difference between the two is time and trouble."