This achievement is currently not available in the Guild Wars 2 API and you are seeing the last known version. The achievement has either been removed from the game or needs to be rediscovered.
Objectives Unlock all 16 Reflective Koi weapon skins in your wardrobe.
Tiers Objectives 1 8 16 Total Achievement Points 1 1 1 3
Rewards Data {"id": 6831,
"name": "Reflective Koi Weapon Collection",
"description": "",
"requirement": "Unlock all Reflective Koi weapon skins in your wardrobe.",
"locked_text": "",
"type": "ItemSet",
"flags":
["IgnoreNearlyComplete", "Pvp", "Hidden", "RepairOnLogin", "Permanent"
], "bits":
[{"type": "Skin",
"id": 11245
}, {"type": "Skin",
"id": 11235
}, {"type": "Skin",
"id": 11243
}, {"type": "Skin",
"id": 11239
}, {"type": "Skin",
"id": 11241
}, {"type": "Skin",
"id": 11240
}, {"type": "Skin",
"id": 11248
}, {"type": "Skin",
"id": 11238
}, {"type": "Skin",
"id": 11250
}, {"type": "Skin",
"id": 11252
}, {"type": "Skin",
"id": 11237
}, {"type": "Skin",
"id": 11242
}, {"type": "Skin",
"id": 11244
}, {"type": "Skin",
"id": 11249
}, {"type": "Skin",
"id": 11251
}, {"type": "Skin",
"id": 11234
} ], "tiers":
[{"count": 1,
"points": 1
}, {"count": 8,
"points": 1
}, {"count": 16,
"points": 1
} ], "rewards":
[{"type": "Item",
"id": 43992,
"count": 7
} ] }