Biomes eruption

Add an fire/volcano biome with 3 new blocks: 1=block of ashes (burns your foot when stepped but its temporally, dissolves in contact with water). 2=hard rock (like deepslate but harder to break). 3=magma block rework (if you break it with any pickaxe with no silk toutch it will turn into lava). Also there is an new mob that can be added. His name is cracker: it has two arms but no legs, so he crawls toward you and really slow when chasing, but has high life, also it spits fireballs like ghasts and you can hit it back (if it is possible) and it has fire resistance. And a new structure often to find in my biome suggestion: VOLCANOS! they can appear in flat locations and there ar various types of sizes: small, medium, big. Thats all for my suggestion [i hope i get picked :) ]