{
    "criteria": {
        "aaa": {
            "trigger": "minecraft:player_killed_entity",
            "conditions": {
                "killing_blow": {
                    "direct_entity": {
                        "type": "minecraft:player",
                        "equipment": {
                            "mainhand": {
                                "item": "minecraft:golden_axe",
                                "nbt": "{splintersaxe:1b}"
                            }
                        }
                    }
                }
            }
        }
    },
    "rewards": {
        "experience": 100,
        "function": "zzzzdonotuse:advancements/splintersaxe"
    }
}
