As I rewatch the series I keep coming up with ideas for new dragons.
One I could see is “Terror-Mail”. A Terrible Terror which would be in post delivery person colours (thinking the typical UK or US uniform). It’s details being that this is the a Terrible Terror trained by The Outcasts (submitter note: Just because we don’t have them featured in the game that much now) to deliver Mail over their island. It could also be the first Terrible Terror that collects Iron. If possible, maybe it could have a mailman style hat?
I’ll keep adding these new dragon ideas.