Cleansing Brew (18226)
It is not against men I must shield you. There are dark worlds barely guessed by man, wherein formless monsters stalk - fiends which may be drawn from the Outer Voids to take material shape and rend and devour at the bidding of evil magicians.> - The Phoenix on the Sword
It is said that the long-dead sage Epemitreus devised a modest brew, by steeping a very particular mix of herbs and ingredients in boiling water, that could cleanse a small amount of the corrupting influence of the Outer Dark from one's mind and body.
MAX Stack 50