Spellscarred: Cleansing Flames

You ventured too far into a zone of plagueland, and found yourself scarred by the powerful energies that permeate the area. Maybe some of the bright blue fire singed your arm or leg. maybe a plaguechanged creature struck you, and opened a wound. This magical wound causes strange magic to manifest within the creature afflicted by it. You gain a +1 bonus to any one stat of your choice. You also gain one of the following benefit:

Cleansing Flames. You are immune to nonmagical diseases and have advantage on saving throws made to avoid getting magical ones, if they require a saving throw. You also gain resistance to poison damage.