Nothing stops this force of nature. Most things just make him bigger and meaner.

Mud-Dragon Battle Leader

He doesn't mind fighting dirty. His whole species was born of the realm of mud. 

Mud-Dragon Champion

I'm telling you, they're gonna pop some tags. Got $20 in their pockets.

Anyone would be a fool to not fall in love with that cute little adorable face.

 ...would smell as sweet. Get on in there and get a snootful. Don't forget to stop and smell the roses.

These cheeky varmints are playing  a joke, and any second now she's going to smell it...

The last line of defense for the Mud-Dragon King. Also, the last thing most attackers see before falling.