There is a big range in the stats/skills/resists on these critters. For example, just three of the 10 or so I tamed on Europa today:-
Don't forget, often magical tameables will bless themselves at some point while we are taming them and this can make the critter appear as though it's a little more uber than it actually is.
I've just spent some time training up Val, who is now at 970hp/119dex and her skills started/ended looking like this:-
Wrestling 87.9 to 98.3
Tactics 97.6 to 101.2 (yes gained past GM)
Resist 89.1 to 89.2 (wasn't training resist)
Anatomy 9.4 to 74.1
Magery 112.0 to 112.0 (on TC1 this never gained)
Eval 51.7 to 76.4
Medi 44.9 to 96.3
Having pvmed and pvped on TC1 with these critters, yes, they are plenty powerful once trained. In full 70's resist suit with 110 magic resist skill, fire breath from a full strength 900+ super dragon does a good 50-60hp damage. Since firebreath damage includes hp in its calculation, reducing the health of the dragon basically means less firebreath damage.
When it's not breathing on you, and
if you're slow enough to allow it to catch you, it will use it's bleed special attack on you as well as 100% phys melee damage, too.
Fun critters, both fun to tame & fun to run with albeit on foot, and powerful ones, too. They just have their own set of checks & balances which are very different from that of the non-super dragons. You can't really compare super dragon to normal dragon anymore than you can compare reptalons to normal dragons. They are just different and have their own strengths & weaknesses.
Blyme - my 3000th post.