[Event] Metallurgy: Decay [16-19] (Bound) item

Increases Honing Success Rate as follows. Honing Lv. 16 (1,605): +4% Honing Lv. 17 (1,610): +4% Honing Lv. 18 (1,615): +3% Honing Lv. 19 (1,620): +3% [Targets: Gear] Eye of Decay Craft Weapon

It comes out of 1,605 Achievement Chest, 1,610 Achievement Chest, and 1,600 Achievement Chest.