Sanctuary, I'm not advocating for more strength, I'm advocating for more choices and combinations... Combinations will lead to strengh by themselves.
The 8k mortal blow heavily depends on your weapon (and thus your level)... the 1.8k was at level 16...
And I highly disagree with "most of int spells beeing useless", they all offer so many tactical options compared to let's say, a whirlwind or a sawtooth strike...