area_effect_cloud

{
  "format_version": "1.8.0",
  "minecraft:entity": {
    "description": {
      "identifier": "minecraft:area_effect_cloud",
      "is_spawnable": false,
      "is_summonable": false,
      "is_experimental": false
    },

    "components": {
      "minecraft:physics": {
        "has_collision": false
      },
      "minecraft:conditional_bandwidth_optimization": {
      }
    }
  }
}