Ultra-Violet is a stat boost that adds resistance and radiation to the character.
Tier I
Adds a 20% chance of resisting Bleeding as well as putting a Radiation effect on everyone else in the image. Lowers Radiation effect on spirit by a tier.
Tier II
Adds a 50% chance of resisting bleeding and 20% chance of resisting confusion, as well as putting a large Radiation effect on everyone else in the image. Lowers Radiation effect on spirit by two tiers.
Tier III
Adds a 75% chance to resisting bleeding and 50% chance of resisting confusion, as well as putting a max Radiation effect on everyone else in the image. Resists Radiation effect on spirit.