Stonizard/Deepslatizard - lizard of the caves

Stonizard (Stone-lizard) or another variant Deeslatizard (Deepslate-lizard) is lizard that body texture resembles to the stone/deepslate and would be composed of stone/deepslate. It is big lizard like komoda dragon. Big head, big body, massive tail, and small legs. His head could be the same as the Evokers fangs spell. He would be passive. Like all lizards he would be near light resources, if not he would just sleep until a light wakes him up. He would have some stone/deepslate blocks on him. If you would give him amethyst cluster or shard the blocks would fall from him and you could get stone, deepslate, cobblestone, andesite atc...(this would give us way to farm deepslate) He would be passive towards player and maybe friendly when given right food. His texture camouflage would be perfect, because it would be harder to find him and would be more rare. His eyes would be dark, so he could see better in dark. If throwen in water he wouldn't swim but he wouldn't die like Iron golems. He could be killed, but you wouldn't get anything. He would die in lava too. His enemy would be silverfish because they attack stone and eats it. And they would attack him and tries to kill him, so they would be rivals. If you would bring him to the upper part of the world and put som blocks over him, so the light wouldn't touch him, you could make some pretty statue. Please vote if you like this idea :).