Ruidium weapon

Ruidium weapons magical weapons made with ruidium, the red element associated with Alyxian.

Appearance
Ruidium weapons appear either rusty in color, or have visible veins of ruidium running through them.

Properties
An attuned wielder of a ruidium weapon gains the ability to breath underwater and their swim speed becomes the same as their walking speed. Attacks they make with the weapon deal an additional 2d6 psychic damage to the target. However, if they roll a natural 1, they must make a DC 20 Charisma save or gain one level of exhaustion and become corrupted by the ruidium (if they are not already corrupted).

If Alyxian the Apotheon is either defeated or redeemed, the ruidium in this weapon will cease to exist and the weapon will instead become a +2 weapon.

History
Ruidium weapons are a crucial item in the adventure described in Call of the Netherdeep and are a requirement to pass through the border between Cael Morrow and the Netherdeep.