Can be pointed, antlers, be branched, spiked, blunt, square, or rounded and cylindrical. Can also be textured with swirls, overlapping scale-like effects, and carvings.
Can be broken, notched, or cut
Can be placed anywhere on the body
Counts for all horns and spikes on the body. Can have multiple types at once
Can be engraved and affected by marking traits
Horns should not resemble objects
Cannot obscure the body or replace a body part
Crowns should not resemble horns
Can be applied via the Thorny Flower (Cannot be swapped to any other trait.)