Zombie Mutation
Intro: This add-on adds four types of mobs and some cool new weapons some of the mobs are huge and some are like a zombie. Here are all of them.
Some may cause lag due to huge and replicated entities. Use a lag reducer to defect lag.
Mobs:

Type:- Fast Zombie
Damage:-6
Health:- 40
Spawn chance:- 90-95%

Type:-Zombie
Damage:-8
Health:-40
Spawn chance:-98%

Type:-Zombie Head
Damage:-8
Health:-80
Spawn chance:-95%

Type:-Mutant Golem
Health:-800
Damage:8
Spawn chance:-50%
All the mobs will spawn in day as well as night so be carefully.
Tools:-
Fire Axe:- Damage 8
Bat:- Damage 8
Long Diamond sword:- Damage 9
Knife:- Damage 6
Dagger:° Damage 6
More To Addons:-
The zombie mob is made by me no of minecraft.
Do'es:-
You can use my add-on to make a modpack.
You can look at every code if you want.
Dont's:-
You cannot repost this add-on and credit your self.
Please ask me before opening or adding this add-on to a modpack
The add-on uses experimental gameplay holiday creator feature additional modding capabilities to work properly.
The mobs will also mutate and some of them may cause lag due to some many entities in one world.
Remainder:-
Yo should have atleast 1gb ram for this addon. In 1gb ram it will work much slower. but on 4gb or above will work as smooth as a butter.
Installation
Just install and click on add-on to install in minecraft.