Mebahel's Zombie Horde

v1.09 You can now add a pool of weapons with a probability to each mob :

{
  "hordeCompositions": [
    {
      "mobTypes": [
        {
          "id": "minecraft:zombie",
          "weight": 30,
          "weapons": [
            {
              "itemId": "minecraft:ironrthf_sword",
              "chance": 0.5
            },
            {
              "itemId": "minecraft:stondrgbdge_sword",
              "chance": 0.3
            }
          ]
        }
      ]
    }
  ]
}