Well, just played a bit against A.I. and it does seem if there is a ton of grenadiers and a few anti air guns you can get shot down but you are likely going to be able to deal maybe a little TOO much damage. I just drop eye of the patriarch and pillar of flame in a base on frost isles and pretty much all land units just die. the dragon might die but so does the opponents army. that is more costly then the 20 recruits that the opposing player has to pay for the dragon itself. So the guy who used and lost the dragon once is "punished" less then the guy who actually built an army.
