{
  "forEntity": "minecraft:wither_skeleton",
  "traits": [
    {
      "type": "traitEffectResistance",
      "effectId": "minecraft:wither"
    },
    {
      "type": "traitHostile"
    },
    {
      "type": "traitImmunityFire"
    },
    {
      "type": "traitUndead"
    },
    {
      "type": "abilityEffectAttack",
      "effectId": "minecraft:wither",
      "duration": 200,
      "amplifier": 0
    }
  ]
}