[Matrixbeast]

Decade can summon his own Hyper Kabuto and do Maximum Hyper Typhoon or Cyclone.
Kabuto can turn himself into Hyper Kabuto and travel through time. It should be checkmate right there.

Going further, I just can't see how Decade stands a chance against Kabuto.
There are Riders physically stronger than Kabuto, yes, but the only way to use their powers, he has to change into them, thus removing his only defense to Kabuto's clock up (Pretty much locking Decade into using Kabuto or Faiz Accel).
Here's the thing. Decade's only possible chance at beating Kabuto is to beat him at his own game. And Kabuto curbstomped his evil twin with the same weapons and powers. Hell, his only loss is because he was too busy angsting over Hiyori to focus, and she's not a factor here.

Decade is strong, but I cannot see how he even measures up anywhere near the level Kabuto is at.
As Frieza put it, Decade could punch a board and it would break in half. Kabuto could punch a board and kill it's entire race.