Fire Resistant Frog

I would like tadpoles grown in lava with the effect of fire resistance to become "fire frogs". They couldn't take fire damage and had a large amount of HP. They could fight back against the player if he attacks the frog. It could be found VERY RARELY in the world near lava lakes, but it could be grown at home and get a special loot from it (a fire-resistant leather that can be obtained without killing it, but after waiting a certain time), for example, fire-resistant armor with protection like iron armor.