I don't know if its a good idea, but i wanted to share it anyway.
What i mean by this is: in skills like wild combo (wich, as far as i've seen, its just wild combo/frenzy, since maul allways hits twice), what if you make the number of hits scale with agility? The more agility you have, the less chances of hitting once and higher chances of hitting 3 times. The stats only matter in comparison to the enemy's tho, so i guess you could make their own agility counteract this.
I think this could reduce their spikyness (IIRC it hits with a power of 33, from 1 to 3 times with equal chance) this would make them more/less reliable, but based on your build or the enemy, rather than chance, because as it is right now it can range from a 33 power attack to a 99 power attack with 3 shots at inducing status effects, and there's nothing you can do about it! (it doesnt trigger guilt/pariah multiple times tho... Right? RIGHT?)
Maybe it would make them underpowered because they would rely on too many stats, after all, it takes Strength to deal damage, Cunning to trigger the passives, Vitality and Strength for defense because they are melee ( close combat needs more defense than ranged doesn't it?) and while Agility is already useful for accuracy and evasion, this would make it even more important, and seems to me that making it so could turn out to be a nerf, in case the stat you decided to focus less was agility...
Correct me if i'm wrong, but in Demon, getting higher stats doesnt seem to make you stronger because enemies scale the same way as you do, having 10/10/10/10/10 stats at level X against a level X enemy seems to be equal to having 11/11/11/11/11 stats at lvl X+1 against an enemy that's level X+1, so if you need to focus on agility too it would make your character just, even more average...
Perhaps i'm in no position of making suggestions as i'm not expert at this game, so i apologize in advance if there's an obvious reason why this wouldn't work. I havn't experienced the full game yet, so maybe there are abilities that i havn't seen that would interact badly with this, or if i'm misunderstanding how they actually work.