Swift Growth Cookie
When used, Vitality bonus +50% for 30 min. Also, applies the following effects based on your level: Lv. 118-125: Acquired XP/ SP +100% Lv. 1-117: Acquired XP/ SP +300% Cooldown: 5 min. The effect remains after death. Cannot be used in the Olympiad.
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.