Spawner Head

This mod adds a new mob: the Spawner Head. Zombies and husks have a 1 in 50 chance of spawning as a spawner head.

Spawner Head Features:

Spawner heads have much higher health than regular zombies as well as built in damage protection.
Its spawner is selected from a weighted list, and can include zombies, husks, spiders, skeletons, and strays.
Upon encountering a spawner head, the player can choose to defeat it for loot or capture it to use as a mob farm.
On death, the spawner head will drop a large amount of experience points as well as loot that you would find in a dungeon chest.
To use one as a mob farm, the player must lure it to a safer location, use a name tag to prevent despawning, and fight off the waves of spawned enemies in the process.
Spawner heads, much like other undead, will burn in sunlight, making the capturing process more difficult.
Spawn eggs can be used on one to change which mobs they spawn
Spawner heads become charged when struck by lightning which will make them spawn mobs significantly faster

Config Options

Spawn Rate: sets spawn rate of spawner heads (default 1 in 50)
Burns In Sunlight: sets if spawner heads burn in sunlight (default true)
Immune to Skeleton Arrows: spawner heads are immune to arrows shot by skeletons (default false)
Immune to creeper explosions: spawners heads are immune to creepers (default false)
Can Be Leashed: allows the player to use a lead on spawner heads to make it easier to capture (default false)
Drop Special Loot: sets if the spawner drops dungeon chest loot on death, otherwise will drop zombie loot. (default true)
Can Be Charged By Lightning: allows spawner heads to become charged when struck by lightning (default true)
Charged Min Spawn Delay: minimum number of ticks to delay the next spawn when charged (default 200)
Charged Max Spawn Delay: maximum number of ticks to delay the next spawn when charged (default 400)
Charged Spawns Charged Creepers: allows charged spawner heads to spawn charged creepers if spawner is a creeper spawner (default true)
There is a separate json file located in config/spawnerhead called spawn_potentials.json, that allows you to modify the spawn weights and add any mob to the spawn list pool, including modded mobs. Leaving this empty will make every spawner a zombie spawner.

Spawn_potentials.json defaults:

[
  {
    "entityID": "minecraft:zombie",
    "weight": 100
  },
  {
    "entityID": "minecraft:spider",
    "weight": 100
  },
  {
    "entityID": "minecraft:skeleton",
    "weight": 50
  },
  {
    "entityID": "minecraft:husk",
    "weight": 75
  },
  {
    "entityID": "minecraft:stray",
    "weight": 50
  }
]

1.16.5 Description:

The Spawner Head mod gives zombies and husks a 1 in 50 chance of spawning as a spawner head.

Spawner heads are slightly tougher than a regular zombie, and its spawner can be a zombie, skeleton, spider, husk, or stray spawner (configurable in the config).

Much like other undead mobs, spawner heads will burn in sunlight and despawn when far away, however capturing one and preventing it from despawning will provide the player with a mobile mob farm.

Defeating a spawner head will drop a large amount of experience and loot based off of its head spawner.

The spawn rate and other settings are configurable.