Artifact - Atk. Spd.
An artifact that increases Atk. Spd. Can be equipped in an attack artifact slot. When enchanted, increases Atk. Spd. Can be enhanced only with attack artifacts. Max enchant value: +15.
Not dropped by monsters.
Cannot be spoiled.
The chances are official (x1). On servers with x10, x100 and higher rates, drop and spoil come more often.