If only they had asked for the services of Voltron...
I don't care if he's overpowered...and a robot.
Obviously some major battling needs to be done and reinforcements are needed to fill the vacuum left by dragons, etc.
Who's Voltron you ask?
This will explain: https://www.youtube.com/watch?v=1uS5b8aQ6z8
Oh, and Cleganebowl? That too would be sorted. ;)