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Though what's essentially Decepticon internal affairs being able to overpower someone like him is a bit unexpected- I'd've expected them to have and consist of mechs with a more subtle modus operandi. -

I think these are the main five, who come together only when they have to deal with a major, big-name traitor who couldn't be dealt with solo.

They wouldn't be as effective if the strongest bots were out of their reach.

And the Autobots have some teams strong enough to do the same- the Dinobots come to mind.