Dimensional Hero's Supply Box
Double-click to obtain one of the following items: Top-grade Spirit Stone, Elcyum, Blessed Scroll: Enchant R-grade Weapon, Blessed Scroll: Enchant R-grade Armor, Bloody Weapon Upgrade Stone, Bloody Armor Upgrade Stone.
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.