Well according to the end combat results, he does about 49% of the damage in the combat round. I've not been putting any runes into training him thus far as far as I know, I have had the opportunity to level up one of his skills and took that bashing skill (sorry, can't remember the name) to where I think it now does 200 - 300 damage, as the last game I tried to play, I really just sort of watered him down by trying to master too many skills for the dragon so I quit playing that game (well that and because the camera mod only affects new games
).
Ok, I'll see what happens as I go along, but as it is now, I think my army pretty much sucks beans in winter as I've not found much to take on, so it's pretty much the dragon and my own fire spell doing the majority of the damage. Will see what happens later on.
Thanks for the advise Kathos.