I think the biggest problem with Solo Delves, for me, is interrupts. The issue isn’t that you have to interrupt certain things but the fact that as a solo player you can only interrupt so much.
So take for example the Thread Bolt ability from Nerubian Threadmancer’s in Skittering Reach (higher tiers) They hit for around 1 million damage per cast if not interrupted and the cast time is fairly quick. Fighting one isn’t too bad, just interrupt and burn it down as fast as I can, however when you have two in a group suddenly you are taking massive damage that quickly melts you.
On top of that, the interrupt only stops their casting that ability for a short time leaving you to get hit by 3 or 4 before your next possible interrupt. If you are in a low movement situation where you can just burn them it’s not bad but otherwise you quickly get melted.
This quickly has become what I personally realize is the problem with Solo Delves vs Group Delves. There are too many instances where multiple mechanics need interrupting but you can only interrupt, stun, cc so much and then you are left hoping Bran does something to stop them.
Zekvir is a good example of this for anyone who has soloed it. Zekvir is a tank with a nasty dot that needs to be interrupted and a few AoE’s that need to be moved out of. If that was all the fight was that would be easy enough to deal with. There is another mechanic though where an egg spawns consistently after set periods of time. The egg has a large health pool and if it hatches a new add joins the right that adds another interruptible ability that will stun you for a very long time if not interrupted. So if you can’t manage to get the egg down in time, you suddenly have two abilities that ABSOLUTELY have to be interrupted or very likely die horribly simply because you likely would not have enough interrupts available.
Keeping in mind some classes have more interrupts than others, some have longer cool down interrupts, some have much shorter, but as a Ret Paladin I find that interrupts are one of my biggest banes in these Delves.
I think that if they don’t want delves to feel better in groups then things like interrupts, dispells, etc need to be taken into account more in terms of “difficulty” and not just damage and health.
I’m not saying damage doesn’t need tuning but that delves shouldn’t overuse mechanics like interrupts or dispells given not every class is as capable as others in those regards. A focus should be put on interesting mechanics to either avoid, soak, or otherwise.
Also, self buffs from rares and treasures are a mixed bag with some buff options being amazingly helpful and others being the south side of useless such as the “your maximum health is increased by 100% until you fall under 60%” at that point shouldn’t it just be an absorb shield instead of such a silly overly complex buff?