Dragons are creatures with nearly unlimited life spans. They can survive for long periods of time, and no one has found a dragon that has died of old age. Adolescence is usually marked by the growth of a hatchling's wings, although not all breeds of dragons grow wings and some breeds have other traits that indicate the beginning of maturation. Once they hit adolescence, hatchlings change quickly, maturing to their full forms in only 2 years.

Dragons don't communicate with each other verbally, but they will growl to scare off predators and frighten prey. Young dragons will emit an extremely high-pitched squeal when they are frightened. To communicate, they use telepathy with each other and to speak to other creatures.

When water dragons mature, they lose their legs and the ability to survive on land, entering the water permanently. They are adept swimmers and eat whatever fish are in the lake they live in. They tend to inhabit the same lake for their entire lives, although a few live in the ocean and swim all over the world.

This dragon is a quick-tempered watcher of the seas. As his name suggests, his most notable attribute is strength. He favors the vast expanse of the open ocean, but can't travel too far for too long because he must remain in contact with his human and the other members of the cave. Strange human vessels are unwelcome in his territory unless they pay proper homage. With ample amount of anger and a lot of swimming in circles, he can conjure a swirling maelstrom for a short period of time. If his wrath causes the demise of a ship, the human commands Maelstrom's Might to carry the stranded to shore. The dragon snarls complaints about this, but in truth his desire is to simply display his power, never to kill.