{
  "criteria": {
    "requirement": {
      "trigger": "minecraft:entity_killed_player",
      "conditions": {
        "entity": [],
        "killing_blow": {
          "source_entity": {
            "equipment": {
              "mainhand": {
                "items": "#minecraft:axes"
              }
            }
          }
        }
      }
    }
  }
}
