Even if you get the first round of shots off, why would the dragon stand there taking arrow after arrow? If he can't find you he's just going to leave and go after you later on his own terms.
Plus, the dragon is smart. If someone's shooting at him out of his blindsight range, it's obvious that there is a long line of sight. If he's standing in a river bank, then where does line of sight come from? The dragon can figure this out pretty quickly. Add to this the fact that he wil obviously know which direction the arrows are coming from, since they are plinking against his scales on that side.
So, the dragon will know the direction of the archer and can close that distance very quickly until blindsight kicks in. Once the dragon is in range it just breathes poison gas once and the archer is dead. If you are incredibly lucky it just follows up with a quick swipe of the claw and that's that. The dragon doesn't even need to bring out the really heavy guns (spells). Why bother exerting itself?
Without some kind of cheapshot like a super poison (and who's to say the dragon is hungry for deer flesh at that moment, especially when it can smell the stench of elves all over it - a little suspicious perhaps?) or arrow of dragon slaying, it's really not looking good...
Plus, the dragon is smart. If someone's shooting at him out of his blindsight range, it's obvious that there is a long line of sight. If he's standing in a river bank, then where does line of sight come from? The dragon can figure this out pretty quickly. Add to this the fact that he wil obviously know which direction the arrows are coming from, since they are plinking against his scales on that side.
So, the dragon will know the direction of the archer and can close that distance very quickly until blindsight kicks in. Once the dragon is in range it just breathes poison gas once and the archer is dead. If you are incredibly lucky it just follows up with a quick swipe of the claw and that's that. The dragon doesn't even need to bring out the really heavy guns (spells). Why bother exerting itself?
Without some kind of cheapshot like a super poison (and who's to say the dragon is hungry for deer flesh at that moment, especially when it can smell the stench of elves all over it - a little suspicious perhaps?) or arrow of dragon slaying, it's really not looking good...