First, Future Trunks places his hands forward at a 90 degree angle and charges a blue energy sphere. Then, he fires a barrage of energy spheres from the energy sphere at the opponent, inflicting a great deal of damage.
Future Trunks uses this attack when he and Krillin travel down into Dr. Gero's Laboratory to find and destroy Present Cell. While looking around the lab, Future Trunks discovers the blueprint plans for Android 17 and takes them in order to discover his weak spot. Satisfied with what he has obtained, Future Trunks and Krillin destroy Dr. Gero's lab and his supercomputer containing the Cell embryo, blowing the entire lab to bits. Just prior to blowing up the supercomputer, Future Trunks also made sure to tell the supercomputer that what he was about to do was payback for all the suffering the supercomputer caused in his future.
Video Game Appearances
Burning Storm was named in the Budokai Tenkaichi series, where it appears as one of Future Trunks' (Sword) Blast 2 attacks in his base and Super Saiyan forms, and in the Raging Blast series as one of Trunks' (Sword) Super Attacks. Kid Trunks has a similar attack in the Butōden series; it is notably one of his meteor attacks in Dragon Ball Z: Shin Butōden. The God Breaker he uses in his Super Saiyan form is similar to a Burning Storm.