I'unno, that sounds like nightmare (or higher, for that matter) to me since like day 1. Chaff is chaff and occasionally you hit a randboss or whatever that casually pushes your shit in. Winning's mostly an issue of figuring out what the latter is at a distance, staying away from it, and hoping the final bosses don't fall into that category. Also being a broken buzzsaw of death, generally, heh. Not sure if wyrmic's back to being one of those... know there's been some changes I haven't paid much attention to, but for a long while they (and especially going antimagic) were one of the weaker classes.
Unless DG's changed their mind since the last time I was particularly close to the dev process, T4 is fundamentally
not balanced around the higher difficulties, though. They're there for 'fun' and for people that want their teeth kicked in occasionally, but making it a smooth or generally enjoyable experience isn't even on the priority list, nevermind high up it. Super broken stuff is (sometimes) fixed, but that's about it.
Personally, if I want more of a challenge or a spicier run without dealing with nightmare+'s horseshit, I'll roll out one of the mods that increases rare/randboss spawning rate and crank those numbers up. That makes things more interesting without enemy scaling et al getting quite as silly.
E: In other news, annihilator is some fun times. Built pretty passive offense so far (grenades, spiderbot, artillery, basically avoiding their active stuff), but I've finally gotten around to really reading some of the talents and holy shit does the tier 4 shield one look all kinds of busted. Flat damage mitigation based off block amount, in a radius? Sign me the hell up, frumple wants that 100+ dam reduction lolno field to stick my arachnoblender and turrets in. There's even a damage component too, ahaha.
E2: And in adventurer fun times, it turns out annihilator rockets will indeed trigger psyshot projections... which, of course, trigger arcane combat procs. I'm having mild survivability issues, and lost two lives to rngreebus deciding a level 37 orc pyromancer was a good thing to drop on my level 12 arse on OF 3, but overall... this is a good kind of silly. Can't even figure out quite how to describe what this would look like. You'd have some crazy thing doing one-handed jojo punches through portals, with the portals exit being attached to rockets they're firing off from a shoulder mounted launcher.
Except rather than punches it would be braining people with psionic voodoo rocks that occasionally erupt into varying pyrotechnics on impact. Also they'd be constantly shooting people in the face to project more rock smack portals. The mechanics are effective, the visuals, absurd.
E3: As for
how silly, you know that thing that can happen when you've gotten so silly you're passively killing many things so fast auto-explore doesn't even recognize they exist and just keeps going as you mow down half the level with basically no input from you outside of pressing the auto-explore button? That's how silly. It's not something I've seen very often in the years I've played T4, ahaha.
Also it turns out rocket pods have a nice synergy with relatively low capacity shot, like some of the set artifact shot likes to have. Since, y'know, it doesn't use ammo but is otherwise entirely like a normal shoot command
E4: Vor armory death room clear cheevo at level 32. Been a while since I ate the wyrms <3
E5: ha ha ha tk wielding a steamgun makes rocket pod hit twice
ho ho ho psyshot dgaf it hits twice too
this is glorious
gloriously stupid