I was reading the 2E stats for dragons and had a couple of thoughts.
1- Shouldn't their THAC0 be like -5 or even -10
2- I think their magical resistance is low at 50%
3- HD could be 200+ and still be within the 1000 - 2000 hp range.
I know I can make changes for my own game, I just wanted to share my thoughts on this.
I like the new avatar.
All three things, THAC0 of 1, MR of 50% and 100 hit dice are generally "good enough". I'm not worried for the dragon. As with anything, feel free to adjust to taste.
I agree that the your dragon is still a battle tank as is.
Thanks for noticing the new Drizzt Do'Urden avatar.