Well I used the blood rose elixir exploit in that video, but I definitely agree that warriors are pretty broken right now. Sundering Cleaver is outside of Fort Joy so without trying to do some kind of conversation lock I doubt I could get it (I settled for a crafted two-handed weapon).
You might be able to do the fight with no exploits. You really just need a high enough initiative to beat down Dallis so Alex isn't an issue and the rest of the fight is pretty normal. (new challenge

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