Marbling Drop is a Super Skill used by certain fighters when in their Supervillain form while under the influence of Dark Magic in Dragon Ball Xenoverse 2, and also by final form Mira.
Overview
The user unleashes an Explosive Wave, then creates a spherical field of energy around themself, launching out multiple energy spheres that bounce around like marbles (hence its name).
Video Game Appearances
Marbling Drop was named and first appears in Xenoverse 2. where it is used by enemies in the Supervillain form encountered in Expert Missions.