All for one achievement strats?

[Authentic Banana]

Holy cow, this one has been brutal to go for. It's probably not ACTUALLY harder than c20, but it feels a lot worse to go for because of how boring the runs are and how brutal specific rare orb rng can be. I'm still struggling hard to get past early act 3 combats and I'd love to hear what anybody else has had success with.

So far, my most promising runs have been with Roundrel with a tragic Balladin run which also had potential. Going for spinfection has gotten me past act 2 quite a few times, but it's so bad at dealing with multiple enemies that I quickly burn out in act 3. I had a heavy ballwark build on balladin that might have been able to tank through the run if not for the 1/3 wall rng eating me in act 2 since I had next to no good damage.

Doubal doubal is incredibly good for bosses, but I'm starting to feel like spinfection can't cut it in the rest of the game. At the same time, ballwark builds seem very hard to get damage on (though I haven't seen a single best orbfence yet).

Please drop your successful runs below and any tips to get through this thing

EDIT: Success and my tips:

l found a lot more success after just swapping to spinventor and crutching on the extremely strong orbs available there (summoning circle and orbposite reaction especially). Focusing on strong AOE orbs is definitely the way to go, with healing as a very helpful bonus. Icircle, Poltorbgeist, and Echorb did wonders in hallway combats (and boss since I lucked into the QR code). Collatorbal damage works nicely as well, albeit at the price of health (at the later stages of the run, you basically have nothing to spend gold on but healing, so the sustain isn't that hard in my experience).

I've heard (and experienced) that the dragon is very hard for this, so good luck on the 2/3. I lucked into a very strong run and might have been able to beat it, but with good AOE, the ruins essentially have 1/3 the health and an easier board.

For pathing tips, unsurprisingly, you want to dodge elites and chests, and the best floors are shops for removes. Events also are pretty useless the majority of the time, so you're better off just hitting a string of standard combats.

[PL]

I did it with Spinventor, but my victory log was already eaten by 'failed attempts' from restarting to get Slime boss and Collatorbal Damage orb for diffrent achievement. What can I say Is avoid treasures and events, and focus on getting decent orbs, if you get trashed by encounter you can always go back to menu and continue to restart battle from the beggining, if you don't like that, for feeling cheese/cheaty you can limit yourself to only do that when you lose because of RNG.

[pablo.veloce]

I did it for Balladin, had a lot of balls via the mirror duplication and the Wand of Skulltimate Power saved the run from small damage:
https://steamcommunity.com/sharedfiles/filedetails/?id=3465461080
I'd say powder Collector and Bomb Powder made a huge contribution to the victory aswell.

[PL]

Originally posted by pablo.veloce:

I did it for Balladin, had a lot of balls via the mirror duplication and the Wand of Skulltimate Power saved the run from small damage:
https://steamcommunity.com/sharedfiles/filedetails/?id=3465461080
I'd say powder Collector and Bomb Powder made a huge contribution to the victory aswell.

one for all is level 1 orbs only, all for one is only starting relic, You showed your win for one for all achievement.

[AutoRefresher2]

Spinventor imo has the strongest starting relic, just focus on only having singletons. My final build had an Assemball for damage and buffing pegs, an Activatorb to also buff a little (although it was pretty much irrelevant in the end), an Opposite Rearction and Summoning Circle to mutliply the number of orbs fired as well as an Echorb to preferably fire after the main Assemball shot and cash in on any damage twice.

With no relics, I feel like the most important part is to find a good source of damage, so probably either buffs from an Assemball/Reforbisher/Swoltorb or something with high base damage. I got lucky with an fully assembled Assemball which of course had both, but other options are certainly viable. https://steamcommunity.com/sharedfiles/filedetails/?id=3465577811

[pelaaja]

Did mine on Balladin, Sphear for pierce and Highway Orbbery for ballwark and boss damage worked great.

[srn347]

I did mine on spinventor, with a heal slime/upgrade build (heal slimes heal 1 more hp on hit for every +10 upgrade on the peg). Lots of failed attempts though, I'd definitely consider c0 all for one to be harder than c20. Unlike c20 it's actually quite rng-dependent.

[Meowables5]

did this run successfully on c0, ended up with a red bomb run with 2 collatorball damage and 3 shock orbsorbers. turns out if you're invincible against red bombs they make a pretty good damage source

[Garlicc]

I also managed to get it with Spinventor. Took a handful of attempts. I tried with all the classes, but kept at it with Spinventor bc I like his starting relic the most and also some of the orbs he has access to.

https://steamcommunity.com/sharedfiles/filedetails/?id=3477168567