I believe this can be changed within the Setup!.txt in Mir200..
I think it's either
LevelValueOfTaosHP=6
LevelValueOfTaosHPRate=2.5
LevelValueOfTaosMP=8
LevelValueOfWizardHP=15
LevelValueOfWizardHPRate=1.8
LevelValueOfWarrHP=4
LevelValueOfWarrHPRate=4.5
But im not 100% Sure
/Luke