Mysterious Blessed Spiritshot (S-Grade) Event
High-level spirit light is infused into a weapon, instantly and greatly increasing its magic power. Can be used on S-grade weapons. Cannot be exchanged or dropped. Can be stored in a private warehouse.
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.