Exallion
Oh i just had a thought! What if Mark is able to find something like the slimes, or even feed his blood to another thing like he did with the dragon and was able to tame and sorta comunicate with it (this thing would be infected with the new mech pathogen). Then he made blood metal and had his poison slime make some metal claws or something and had that pet incorporate that metal into its body. I also just remebered that golem thing he found in his he spirit dimension, what ever happened to that?