Talk:Darth Vader VS Doctor Doom/@comment-39.42.204.14-20150617090542/@comment-1652808-20150617201134

Ben 10 vs Beast Boy

the main problem I have with Ben 10 vs Generator Rex is the fact that they already have knowledge of each other (since ScrewAttack tends to take in noncanon information), and Ben has used Upgrade to help Rex, which would mean he could also use Upgrade to kill Rex with his own ability.

Rex and Ben are powerful, but Ben stomps mainly because of upgrade.