Dragon turtle

Dragon turtles are one of the most powerful non-dragons, being among the most feared of water creatures. Their main breath weapon is steam while its hard shell makes it impervious to most weapons.

Physical Description
A dragon turtle's hard shell is mistaken for the reflection of heavenly bodies on the water when it surfaces and it is accented with silver fringes. The shell's actual color is about the same color as the sea around it. Its limbs and neck are a lighter color, highlighted with golden fringes. Adult dragon turtles can surpass 40' (12.2m) in length.