Arrow of Heracles

Ammunition, generic variant, very rare

After great hero Heracles defeated the Lernaean Hydra, he dipped his arrows in the creature’s caustic blood. The poison infused into the arrows creating a weapon so insidious, being struck with one almost certainly meant instant death. In fact, Heracles himself met his demise by the very same poison. You have a +3 bonus to attack and damage rolls made with this piece of magic ammunition. Once it hits a target, roll a d20. On a 1-5, the poison has subsided and the arrow is no longer magical. Pierce of Death. If you critically hit while using the arrow, the target must make a DC 20 Constitution saving throw or immediately die.