Fieari
Explorer
The new grim-n-gritty rules were mentioned, which I think you should look into getting (rpgnow has it, pretty cheap too). A purple worm in said system has 328hp, while a level 12 fighter with 18 con would have a mere 30hp. Additionally, the purple worm gains DR 15/- that even works against magic (the fighter might have a similar style DR, but only in the 5-10 range). That purple worm just became a NASTY little bugger.
(On the other hand, in this system, its AC is 1d20-6 for each attack made on it, and the system effectively includes automatic power attack, in that the more your roll over the target, the more damage you do... so its still possible to kill it with sufficient skill and great caution)
(On the other hand, in this system, its AC is 1d20-6 for each attack made on it, and the system effectively includes automatic power attack, in that the more your roll over the target, the more damage you do... so its still possible to kill it with sufficient skill and great caution)