From this, it could be inferred.
Its subsequent Ultimate evolution would most likely be BlackMetalGarurumon!
The predicted route was:
Gabumon → BlackGarurumon → BlackWereGarurumon → BlackMetalGarurumon.
Meanwhile, Gabumon's Gluttony evolution route was: [Gabumon] → Garurumon → MachGaogamon. Barring any surprises, its Ultimate evolution form should be Z'dGarurumon, also known as Infinite Garurumon!
Data on MachGaogamon had already been recorded.
In the setting, it was also an artificially modified Digimon, bearing rocket engines with immense thrust. Though the engines' airtime was quite short, it could use the rockets' instant maximum thrust to execute its specialty—hit-and-run tactics.
(Image: MachGaogamon)
"Card Name: MachGaogamon" [Type: Spirit Card]
[Level: 88ccooooo) [Race: Bird-Beast Species]
[Attribute: Steel Type/Fighting Type] [Magic: 4500] [Attack: 5500] [Defense: 4500]
[Ultimate Moves: Gaoga Tornado, Winning Knuckle, Howling Cannon, Mach Spiral]
/
Though MachGaogamon possessed the Steel Type attribute, it was a high-speed, high-offense Magic Spirit.
Its Ultimate Moves were as follows:
[Gaoga Tornado: MachGaogamon used maximum thrust to surround the enemy, unleashing a barrage of ultra-high-speed strikes.]
[Winning Knuckle: With the explosive power of its rocket engines, MachGaogamon delivered a devastatingly impactful punch!]
[Howling Cannon: When MachGaogamon roared, it unleashed a Supersonic attack capable of intimidating and instilling fear.]
[Mach Spiral: MachGaogamon activated its flame engines and instantly pushed its speed to the limit, delivering a spiraling strike to its opponent.]
[He fell asleep again.]
Dark Demon and the Fairy Tale Kingdom (4k)
MachGaogamon truly lived up to its name, its speed nearing that of sound. Gabumon's standard evolution, WereGarurumon, was already incredibly fast. But MachGaogamon was even faster.
However, despite being an evolution of Gluttony, MachGaogamon displayed few traits associated with Gluttony.
—That was not particularly strange. After all, some people could eat no matter how much they wanted without gaining weight.
Only after BlackWereGarurumon naturally devolved back into Gabumon did