The skin unlocked by this item is required to complete the following achievements:
{"item_id": "36906", "name": "Arzneikundlerischer Primordus-Langbogen", "description": "", "type": "Weapon", "level": "80", "rarity": "Exotic", "vendor_value": "396", "icon_file_id": "534129", "icon_file_signature": "7F5A0E4DB57199370B7205C33FDF23AEC558640F", "default_skin": "3897", "upgrade_recipes": [], "game_types": ["Activity", "Wvw", "Dungeon", "Pve"], "flags": ["SoulBindOnUse"], "restrictions": [], "details": {"type": "Longbow", "damage_type": "Physical", "min_power": "920", "max_power": "1080", "defense": "0", "infusion_slots": [], "infix_upgrade": {"id": 605, "attributes": [{"attribute": "Toughness", "modifier": 171}, {"attribute": "Healing", "modifier": 239}, {"attribute": "ConditionDamage", "modifier": 171}]}, "suffix_item_id": "", "secondary_suffix_item_id": ""}}