Mob to Mob Combat

Ever Wonder what is happening in your minecraft world when you arn't looking?  Well this would chsnge that!

1st, Zombies and drowned can now turn mobs into zombie mobs like zombie cows, zombie sheep, zombie fish, etc.

2nd, When foxes have coal in hand or when foxes, dogs, and cats walk on coal blocks, they turn into soot variants that are black.

3rd and last, Mobs go to ar with their variants.  So skeletons would fight strays and zombies would fight husks and drowneds etc.