OK, the idea here is of an ancient and powerful super-dragon. I'm sure we're all familiar with the concept. A dragon defeats all it's rivals during some forgotten age. Then it sleeps for untold years. It wakes up hungry and ready to assert it's power once again.
Now, normally I like this concept. I'm just not sure about it here though. The reason being that we're going to have a number of dragons that you'll encounter as wandering monsters and that you may be able to get in your army. They're going to be very powerful. So, we would need to be very careful with Vendral (or whatever we name it). If it's not powerful enough it will feel like “Ah... anther dragon...”, if we make it too powerful it will be “Oh no! The super titan! I'll need an army of titans to defeat it!”.
Needless to say, we want to avoid both those extremes. Still, if the idea is popular we can try it.
How many +1s does the concept have?