I have a weird issue with the official httyd class system. If you don't know, dragons are catagorised into 7 classes: Stoker, Boulder, Sharp, Tracker, Tidal, Mystery, and Strike. Originally, there was a fear class with the snaptrap and zippleback. It was replaced with Tracker with the rumblehorn and nadder. This is where I question the classification. Deadly nadders used to be sharp class, but are now tracker class. They do have keen scent, but they are on the symbol for the sharp class. The submaripper is in track class even though it should really be tidal. The most questionable is the Strike class. The Strike class contains the Night fury, light fury, night lights, triple stryke, skrill, snow wraith, and deathgripper. The Strike class are meant for the fast, rare, and deadly. This is where the fury family, the skrill, and snow wraith are here. You could defend the stryke and gripper by saying that they are deadly with deadly tails, but the DEADLY nadder also has a deadly tail. All of these dragons have the ability to kill you. The deathgripper was originally in the mystery class and the stryke fits well with sharp. Maybe you have dragon be in multiple classes at once, like the nadder is in both the sharp and tracker class.