[nr] sclera, heterochromia, weight
[s] teeth, hair, shine
[c] tail, fur (at the base of the neck)
[uc] fur, pupil, tongue, ears
[r] two tails, rev much, extra ears, extra legs, double eyes, glow, horns (on cheeks), halo(around leg), colourful blood
[L] gene splice (cobra hood)