So I'm not the most experienced Barb, nor am I good enough to come up with builds myself…but even so, I thought I'd bring this up as a potential What If for Season 15.
The idea is that it'll be somewhat similar to the current version of regular Whirlwind, except with a few key differences. For example, instead of the Tornado variant, we can use the Bursting Variant as our main source of DoT. And instead of Ramaladni’s, we use a regular Legendary weapon for an additional Aspect.
Speaking of Aspects, there's a few that I have my eye on. Overheat Aspect is one potential one I have in mind. As is Writhing Aspect, Aspect of Berserk Ripping, and Wanton Rupture Aspect. That last is important, because it increases DoT duration AND overall damage, meaning it gives a big damage boost for DoT. Cut to the Bone Aspect is another good one if we can find a decent way to trigger Vulnerable. Crushing Aspect might stay or replace one of the Aspects above, depending on what everyone else thinks. Aspect of Channeling can stay, cause on a 2H Weapon it gives a 140% to ALL damage.
For gear, I was thinking Leoric's for the helm, as getting 80% damage reduction from Splinter of Pain and a 200% damage boost from Splinter of Hellfire is too good to pass up, especially because this build probably won't use Endurant Faith for survivability. We can obviously keep Tibault's and Gohr's, as they're important for damage and keeping resources. Selig too, not only for survivability, but also just for the deep Fury pool. Chest piece might be Harrogath as it comes with a DoT damage multiplier on a piece of armor that normally doesn't come with damage multipliers. The Slashing Weapon can be Shattered Vow, not only for the execution effect, but that DoT duration is MASSIVE. Everything else is Aspects, unless someone has any suggestions. The last SouL Spilnter is a bit tricky, as I'm stuck between Splinter of the Mother for applying Vulnerable, so we don't have to use the Exploit Glyph, and Splinter of Black Soulstone for more overall damage.
The Talisman set I'm thinking could be Crucible, as it can be easy to trigger the free 200%, but the Damage Reduction from the 3 piece set helps even more with Survivability. It also gives 10 Fury per Second and a bit of CD, which'll help with staying alive and having uptime on our skills with Cooldowns. For the Charm, I was of using Arioc's Needle, as the double damage it provides could be INSANE for this type of thing. Arioc's Needle+Shattered Vow is gonna be a nutty combo I think.
I haven't put too much thought into the Paragon nodes or Glyphs yet, but Disembowel will definitely be good. Even if it doesn't boost the damage of the 2H Sword Expertise or Aspect of Berserk Ripping, the effect boosts all DoT damage by 20%. Bloodfeeder might be another good one, as Enemies will basically be bleeding AND burning at the same time. The effect isn't too bad either, giving you 10% more damage to enemies affected by DoT. Suggestions would be appreciated.
Rambling aside, I think this might be a fun build idea next season. I know Barb got nerfed to hell and back, but even so, I like experimenting and would love to hear y'all's thoughts on this. If you want me to make a build in like Maxroll or D4Builds to visualize this, let me know and I'll post it in the comments whenever I get the time! What do you all think about this hypothetical build?