1. they are only genetic if you have foal stats and can design your own baby!
2. they can be almost anything, just talk to an admin first and let us know what you are doing
3. the non-peg partial wings would be gliding rules only, like usual and would NOT be passed on
4. non-unicorn horns would be weak/ineffective in battle and would NOT be passed on
They are mainly for things like fangs, elongated ears, crystal dermatitis (what I call crystals growing on ponies), primitive/early horse style hooves with tons of toes, full on lion's manes, elbow feathers/crests, dragon spines, scaly skin, etc, etc, etc