From "Ben 10: Alien Force: War of the Worlds: Pt. 2 (#2.13)"
All is lost. They are far too powerful to fight.
Why fight them when we can help them? Omnitrix, can you repair the genetic damage to the HighBreed? All of them?
Genetic manipulation on that scale will require all available power.
[after a moment
Genetic recombination sequence is ready.
Highbreed Supreme Commander
What are you doing?
[Humungousaur reverts to Ben
Wait for it.