Excuse me, I'm a bit confused about the context here, but I'll try my best to answer your question as if it were related to the popular film franchise "How to Train Your Dragon." Now, in the realm of the movie series, dragons are the central focus, and they come with various names and characteristics.
If we're specifically talking about the name "Drago," it's not a dragon name that I recall from the "How to Train Your Dragon" films. However, it could be a fan-created name or a reference to a different piece of media.
That being said, if you're asking about how to name a dragon in the context of the movies or in general, there are many creative ways to go about it. Dragons are often named based on their appearance, personality, or abilities. For instance, a dragon with shimmering blue scales might be named "Azure," while a fierce battle-hardened dragon could be called "Grimfang."
So, if "Drago" isn't a direct reference to a dragon from "How to Train Your Dragon," perhaps it's a name you've come up with for your own imaginary dragon. In that case, it's entirely up to you to decide what kind of dragon "Drago" is and why you chose that name for it.