{
    "parent": "minecraft:progression/root",
    "display": {
        "title": {
            "text": "Headhunter's mastery",
            "color": "#00882B"
        },
        "description": {
            "text": "Place the creeper head to gain ghosting",
            "color": "#3BCC66"
        },
        "icon": {
            "item": "minecraft:creeper_head"
        },
        "frame": "challenge",
        "show_toast": true,
        "announce_to_chat": true,
        "hidden": false
    },
    "criteria": {
        "head": {
            "trigger": "minecraft:inventory_changed",
            "conditions": {
                "items": [
                    {
                        "item": "minecraft:creeper_head",
                        "count": 1
                    }
                ]
            }
        }
    },
    "requirements": [
        [
            "head"
        ]
    ]
}