References for Night Prowler dragons who may or may not have drawn some inspiration from Toothless.

Night Prowlers are largely-terrestrial dragons roughly the size of a mountain lions, and have similar living and hunting habits (though prowler claws are non-retractable and thus not as sharp as a mountain lion; they primarily use their teeth and weight to bring down prey). Dragons of both sexes have three sets of horns along the sides of their faces; in males, the top horns are noticeably larger. They mostly serve as display and potentially as defense against anything attacking their neck.

Unusually for dragons, they make little use of their wings; the limbs aren't strong enough to do more than give them a touch of extra lift in a jump, or used to batter opponents in fights. 

And most important of all - Night Prowlers have toe beans!