[Cainehill]

200 HP of carnivorous carrion and it didn't perform well??? You simply treat it as you would most SCs - put on a bit of a range of magics, research something along the lines of Enchantment-1 and Alteration-3, park it in the back corner of the battlefield to cast some buffs before it charges into battle. If the paths are low, you might have it in the 2-legged form casting 4 buffs, then changing shape and attacking.

Buffs like fireshield, Breath of Winter, Mistform, Ironskin, Body Ethereal, Personal Luck, Quickness, etc, are all highly recommended depending on the magic you put on the dragon, and depending on what it's going against. Crossbows you might add Air Shield to the list, for example. Another trick is to send a carrion lady along with the dragon to cast carrion regrowth and retreat - that way the dragon gets regeneration. Since the lady retreats, she doesn't die and cause the dragon to retreat.