1) A single curaria mancox herb. Then hand it to Doctor without borders, or the united nations gardening division, and let half of earth's problems fix themselves.
2) Ring of immunity. Then I start a lucrative career as a hazardous terrain rescuer. Building on fire? Easy. Active blizzard? No problem! Acid rain lightning storm? Laughable!
3) Probably bulging cranium. Appearance isn't that important when you're a supernatural genius.
4) Concentration. I just get easily distracted.