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Rex Vulcan

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Enough? Just as your loyalty to master Spectra knows no bounds, so does my loyalty, to you!

Rex Vulcan to Gus, Avenging Spectra

Rex Vulcan
Rex Vulcan Bakugan form
Attribute Subterra Subterra
Power 700 G
Variations Premo Vulcan
Rex Vulcan
Shadow Vulcan
First appearance Spectra Rises
Voiced by Kyle McDonald

Rex Vulcan is the evolution of Premo Vulcan and Gus Grav's Guardian Bakugan.



Rex Vulcan is the evolution of Premo Vulcan. His features are upgraded versions of Primo Vulcan's. His knuckles are shielded from his spinning rings. His bull horns go up instead of across. His eyes are still covered by the red specs, but his real eye color is brown and wild. He also has shoulder pads opposed to his pre-evolved version. His body is now bigger and he also not only runs while battling but slides. His knuckles also had two new features when his Fusion Ability activates, they get drills on them instead of spinning when he was Primo Vulcan and before the fusion ability the knuckles get horns on them for piercing. His knuckles also turn into cannons when he does not fire them. He still has his free will (because he and Elico didn't struggle when Chaos Ability X was used on them), even though he was evolved due to Chaos Ability X.


Bakugan: New Vestroia

Rex Vulcan first appears in episode 31 when Primo Vulcan evolves due to Chaos Ability X. He then appeared again when Gus battles Zenoheld.

In episode 39, he faced Farbros and has trouble but looked like he had the upper hand when Blast Elico changed his attribute to Subterra. In this battle it also shows that he still had his own will as he could speak and he protected Gus when Farbros tries to kill him. After Elico and Hexados were killed he tried to protect Gus because he was still loyal to him. He was blown away by Farbros along with his master, Gus.

In episode 49, it is shown Gus is alive in a cell and Rex Vulcan was too.

In episode 50 he helped Gus escaped from his prison cell and battled King Zenoheld and Farbros for a second time. During the battle, he was able to beat-up Farbros, and, together with Helios MK2, outmatched even Assail Farbros, thus making him the third Bakugan (after Dryoid and Helios MK2) that won against Farbros and defeated Assail Farbros.

In episode 51, he battled the Alternative Weapon System alongside Spectra and the Resistance.

In episode 52, he brawled alongside Minx Elfin, Preyas, and Dryoid outside the Alternative while the others are inside of it. Later, he bids farewell to the humans and their Bakugan.

Bakugan: Mechtanium Surge

He reappeared in The Final Takedown, fighting the Razen Titan clones. Vulcan said "It's been a while since we've battled" meaning he and Gus had not brawled since Final Fury.

Ability Cards
  • Hammer Knuckle: Transfers 300 Gs from the opponent to Rex Vulcan.
  • Mega Viblow: Nullifies the opponent's ability.
  • Hyper Impact: Transfers 500 Gs from the opponent to Rex Vulcan.
  • Hyper Aegis: Nullifies all the opponent's abilities and adds 500 Gs to Rex Vulcan.
Fusion Ability Cards
  • Drill Booster: Adds 400 Gs to Rex Vulcan.


Rex Vulcan was not released.


His ball form seems to be a mix of his original ball form and that of Gorem.

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