Level 5 Poison
Distilled from toxic subterranean fungus, skull rot causes alchemically enhanced spores to root in the brain and trigger madness.
Poison 250 gp
Attack: +8 vs. Fortitude; ongoing 5 poison damage (save ends), and the poison makes a secondary attack.
Secondary Attack: +8 vs. Will; the target makes a basic or charge attack against the nearest creature it can see on its turn (save ends).
Special: This poison works only when it is inhaled.
Published in Dragon Magazine 367.