I think Brute Force could use a buff. I believe it was already buffed recently, but it’s still not enough.
Currently it’s the 2H melee only passive that provides 58 flat lightning and +72% physical/IT damage.
58 flat damage is quite huge compared with other flat sources in the game, but for 2H it’s somewhat meh. It’s relativity thing. Something like Reaver’s Claw has base average damage of 88, so say 36 flat from Fire Strike looks big (40% of base damage). Stonefist rebuke has 315 base average damage, and 58 flat next to it looks much smaller (only 16% of base damage).
The level at which it would had been impressive starts with 100 flat or so. That said, 2H are typically not about flat stacking at all, because the magnitudes of flat are balanced around 1H. 2H loves attack speed despite the penalty, 2H loves %damage bonuses and high %weapon damage, crits as well.
+72% physical damage is also kinda low. Look at Temper. Temper has +100% physical damage. Available to all builds.
Generally, if an ability has such a strict limitation as “2H Melee only” then it is expected that it’s bonuses are of magnitude that make sense for 2H builds but too OP for everything else. A magnitude that is just quite a bit above the good for 1H doesn’t fit it. Currently Brute Force is just a transient towards the Feral Hunger.
A pitfall to avoid would be making the skill too specialized. E.g. now it provides flat lightning and %physical. Both Ultos build and 2H physical are among the most consistent 2H builds out there, so it’s possible that they will be made stronger while every other 2H build bites the dust. With this very reason I suggest to switch flat lightning to flat physical instead, because at the very least it could be converted into anything.
Another pitfall is to make Brute Force so good that every 2H melee build should have Shaman. I’d say it’s already like this though, mostly because Shaman has Feral Hunger, Wendigo Totem and HotW, while other classes have to struggle with both squeezing the most damage and finding sources of sustain and durability.
Any ideas & critique is welcome. May the Brute Force be with you.