The Gravelin

Imagine yourself walking in a desert, mountain or cave and you find a gravel creature. It’s a Gravelin. They are neutral, they won’t attack unless you attack. If provoked, they deal 4-6 hearts of damage. It could turn into an Igneous Gravelin if put into lava. The Igneous Gravelin would be hostile and would attack you no matter what of it sees you in a 13 block radius. Igneous Gravelins burn, but regular Gravelins do not.