[
  {
    "hostile": true,
    "random": 0.4,
    "healthmultiply": 2,
    "damagemultiply": 2
  },
  {
    "hostile":true,
    "random": 0.3,
    "healthmultiply": 3,
    "damagemultiply": 2,
    "armorhelmet": ["minecraft:iron_helmet", "minecraft:golden_helmet","minecraft:diamond_helmet"]
  }
]