Where: Lore
description:As per the
Tiefling page on lore TIefling can have scales but in the note it says that they can't have any wings, tails, Large horns, scales or any other feature than those mentioned above. Well since the scales were mentionned above, it seems a bit contradictory.
it's understandable that they can't have wings, tails and glowing eyes, since they were not in the physical description, but the scales were.
Physical Description:
...
Tiefling skin comes in many varieties, some may have scales or fur, while others may have grey or black skin. Most have brown or reddish hair, although black is also not uncommon.
...
Note: Tiefling player characters may not have wings, tails, large horns, scales, glowing eyes or other features apart from the ones just mentioned.