The skin unlocked by this item is required to complete the following achievements:
{"item_id": "13697", "name": "Primordus Greatsword", "description": "", "type": "Weapon", "level": "80", "rarity": "Exotic", "vendor_value": "396", "icon_file_id": "534137", "icon_file_signature": "A9C260563B665CE2532E6D333C344518ED03CBCD", "default_skin": "3916", "upgrade_recipes": [], "game_types": ["Activity", "Wvw", "Dungeon", "Pve"], "flags": ["AccountBound", "SoulBindOnUse"], "restrictions": [], "details": {"type": "Greatsword", "damage_type": "Physical", "min_power": "995", "max_power": "1100", "defense": "0", "infusion_slots": [], "suffix_item_id": "", "secondary_suffix_item_id": "", "stat_choices": [155, 161, 159, 157, 158, 160, 605, 753, 1111, 1109]}}