I fail to see how a 20% damage boost moves battle stomp from unusable to good.
The damage is too high, because in most encounters you can destroy armor and CC enemies turn 1 easily, even bosses.
I've played with a full mage party with only 1 summoner, it was perfectly doable, but you actually want loremaster to check enemy resistances and play accordingly. In some places I feel like resistances are bit overdone but overall it's not that bad. You don't need to respec your mages either, just make sure you cover all elements with your party as well as each mage having some proficiency in 2-3 and/or having some useful support abilities memorized when he can't contribute much damage.
With
a single Rogue you aren't doing this for a while. Battle Stomp is one of the few skills that greatly favors a Two-Handed weapon. That, and Tentacle Lash. Most of the other "on hit" Warfare skills crit from behind, but Battle Stomp isn't one of them. You need it to deal good base damage, and that doesn't happen without Warfare on a Rogue. You cannot strip the physical armor in a single hit of anything other than a caster with that until midway through Act 2. But since casters are not typically within close proximity of one another, it's better to simply kill the one you're targeting than knock it down.
I really don't know what game some of you are playing, but Acts 1 and 2 are the largest portions of the game, and the "problems" don't really even happen until after that point. It's as though you're only rembering the last third of the game instead of everything up until then. Otherwise, physical classes are mostly balanced (the advantage going to the Ranger) and damage dealing casters just suck all around. Without Warfare working the way it currently does without raising the other skills up, most everyone will simply underperform the same.
The only thing challenging about that is having the desire to continue playing.
