Sorry for the wait, if you were interested in the dragons anyways.

You may think 'Thats not a dragon, its just a serpent!'
You'd be wrong though. All dragons are inherently magic, so while it may appear normal, it still has magic properties.

The midnight dragon!
The Terror of the Depths!
This beast loves spending its time in the midnight zone of the ocean, hence the name. That being said, it still comes up from the bottom of the ocean to destroy ships, and what an easy time it has doing that! Big enough to crush a frigate with ease, no boat can leave this beast's grasp unscathed. Even if it can't break it apart, it will drag it down to the depths of the ocean where the sheer pressure will do that for it. It is seen extremely rarely on the surface of the water, as it is unable to breathe air without special means, but when it does show up, havoc is sure to ensue.