Spear of Achilles

Weapon (dory), very rare (requires attunement)

The spear of Achilles made from the ash tree at Mount Pelion. The spear was given to Achilles, either by his father, Peleus, or by his tutor, the Centaur Cheiron.

Achilles killed Hector with this spear.

You can use an action to cause thick rust to coat the tip.

The rust remains for 1 minute or until an attack using this weapon hits a creature. If the target is a creature other than an undead or a construct, it must succeed on a DC 17 Constitution saving throw or lose 10 (3d6) hit points at the start of each of its turns due to an infernal wound. Each time the wielder hits the wounded target with this attack, the damage dealt by the wound increases by 10 (3d6). Any creature can take an action to stanch the wound with a successful DC 12 Wisdom (Medicine) check. The wound also closes if the target receives magical healing. The spear can’t be used this way again until the next dawn.