{
  "type": "lucky:group",
  "luck": -2,
  "outcomes": [
    {
      "type": "lucky:block",
      "state_provider": {
        "type": "minecraft:simple_state_provider",
        "state": {
          "Name": "minecraft:air"
        }
      },
      "shape": {
        "type": "lucky:cube",
        "size": [3, 20, 3]
      },
      "pos": ["{playerPosX}-1", "{playerPosY}-20", "{playerPosZ}-1"]
    },
    {
      "type": "lucky:block",
      "state_provider": {
        "type": "minecraft:simple_state_provider",
        "state": {
          "Name": "minecraft:lava"
        }
      },
      "shape": {
        "type": "lucky:cube",
        "size": [3, 1, 3]
      },
      "pos": ["{playerPosX}-1", "{playerPosY}-20", "{playerPosZ}-1"]
    },
    {
      "type": "lucky:block",
      "state_provider": {
        "type": "minecraft:simple_state_provider",
        "state": {
          "Name": "minecraft:cobweb"
        }
      },
      "shape": {
        "type": "lucky:cube",
        "size": [3, 1, 3]
      },
      "pos": ["{playerPosX}-1", "{playerPosY}-19", "{playerPosZ}-1"]
    }
  ]
}