Yea lets waste Mythic abilities for a small boost.
This is one of the dumber things I've seen in this thread and you had some stiff competition. Congratz!
So if +6 natural armour, +8 to one physical stat, +6 to a second physical stat, and +4 to the third physical stat, as a boost type that stacks with everything else in exchange for a -2 to the three mental stats is a small boost, what's an example of a big one?
Seems pretty busted when you compare that as an undispellable, permanent buff vs. what you get from armour training. (Hint: +4 max dex adjustment, -4 armour check penalty, +5 DR)
These buffs aren't even in the same league, what the hell are you on? The only reason to pick pure fighter is for RP reasons. It's not bad, but mutation warrior knocks it out of the park.