Inexorable

--- The plant or fungus your body is based upon has a penchant for becoming a multi-planetary invasive species. When you're not on your home world, you gain a +1 circumstance bonus to saving throws against diseases and poisons. When you succeed at a saving throw against an affliction that's benefiting from this bonus, you improve your condition by 2 stages (or by 1 stage if the affliction is virulent).