Str in iss for what? Lol... Best iss, if you intent to have M.I kept, obvious base human mage. If not, orc, due to highest con, "easy" 100k hp.
So basically best way to build ISS is to create dominator ( for future clan buffs) and awaken him into the hierophant by using chaos essence. Tons of hp + MI.
There's another thing. It is impossible to have dominator with MI. Unless you make a prophet dual on it maybe, because only orcs can be dominators.
There is onje more thing i need to know. With Chaos essence I can awaken to any other ISS race/class and I can revert it as well. How many times can I do that process ?
As long as you have euro, there is no limit. Only limits are: - Non-orc character cannot be a dominator, and it can't be a dualclass - Non-dwarf tyrr cannot be maestro, and it can't be a dualclass - Ertheias are unable to use any chaos essence, even on dualclass. Also, any class-specific skills that are enchanted and disappear, as the new class doesn't have them, are removed without compensation.