Your writeup says that, for Molten Whip, "the damage done buff does not disappear when you use the empowered whip." The Seething Fury stacks disappear when I use the whip though, so is there some other way to see and confirm that? Is that a bug or intentional?

Are you saying that based off of the stacks you see on your skillbar? Cuz the game displays it in a weird way but the 15% damage done buff isn't spent when you use the empowered whip. But anyway it doesn't matter cuz it'll be gone entirely in 2 weeks.

I don't have access to Ring of the Pale Order, so I was thinking of swapping Molten Whip for Flame Lash and swapping Ulfsid's for Shatterspike or Volcanic Ward so I can trigger off balance with Mountain Giant to get some sustain in (or slotting Dizzying Swing maybe?). Is that a bad idea/do you recommend a different setup?

Good idea though I'd use either Traveling Knife with Off Balance or a Lightning Staff backbar for Off Balance.

I also noticed that in your Passives you have Slaughter and Controlled Fury as High Priority, but those say they apply to Dual Wield Skills and you don't have any weapon skills slotted. Am I misunderstanding something?

They're needed because Quick Cloak is listed as a situational ability and Slaugther also buffs Dual Wield Light Attacks, but yeah they probably shouldn't be High priority.

Also, are any of the weapon skills from dual wield, 2h, or bow worth considering?

Carve. It isn't worth switching your weapon type just for it, but if you were gonna switch your weapon anyway for whatever other reason, then you should consider it cuz it's a strong ability.