Bantor

Strong enough to pose a danger even to Cybertronians, one does not want to be caught in the path of stampeding Bantors.

At some point, Grimlock and Arcee had 10,000 berserking Bantors stampeding right at them. They managed to avoid a grisly fate by having Arcee mimic a Bantor call and lure the pack away. When threatened by a flock of Air Hammers, the two would recreate this plan.

However,we never seen Bantor in the show. As bantor was only mentioned by Grimlock,it is most likely that he was cancelled/cut from the show for an unknown reason.