Blessed Beast Spiritshot
The light of high-level Sprites is enclosed in pet/summoner, so it instantly increases the magic power of pet/summoner. It is very light. Cannot be exchanged or dropped. The Blessed Spiritshot consumption can be verified in pet/summoner information window. (Used from the owner's inventory.)
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.