Beyblade: Metal Fusion
Lightning L-Drago's dark power began to absorb Ryuga so he ended up possessed by it. When the match was midway through, the platform broke and Pegasus's Spirit saved Gingka. But Tsubasa's, Kyoya's, and Hikaru's spirits came through and gave Pegasus their power in order to help Gingka to win the battle, deciding the fate of Beyblade. In the end, Gingka won the battle. Ryuga suffered a devastating defeat in which the dark bey, L-Drago, was cracked to its core thus ending the dark reign of the evil power.
The way it works is Pegasus gains the power of all of the Blader's Spirits in the world, proceeding to a massive energy release by Pegasus that can crack high-grade metal, as shown when cracks run through L-Drago. This release totally drains it and manifests itself in a sort of space battle where Pegasus wins.
Because the power that this move had totally drained Pegasus, this move was therefore only used once.
Metal Fight Beyblade VS the Sun: Sol Blaze, the Scorching-hot Invader
Beyblade: Metal Fury
The move is upgraded to a stronger version called Super Cosmic Nova.
Beyblade: Shogun Steel
Gingka uses this special move seven years later with his Samurai Pegasus W105R2F along with Zyro Kurogane and Salamander-Ifrit W145CF's Super Burning Uppercut and Kira and Behemoth Golem DF145BS's Rising Hammer Golem to defeat Doji's giant robotic Beyblade.