One-of-Many (Magic Family)
I could not get the suggested to work, and tried several other suggestions (didn’t have fast enough pets to avoid his cannon) this is what I came up with (pets and breeds that I used) … I tried this several times and it worked every time for me.
Definitely not working at all. The claw isn't dying in the round it's supposed to, then the enemy pet has too much HP left to be killed by the Surge of Power. And with how often Foreboding Curse misses, it's just a garbage strat.
There is unavoidable RNG here, with the Darkness and the damage ranges of Crush and Shadow Shock, but it definitely can work. When it fails, it doesn't fail in a way interesting enough to be worth a full analysis.
I just tested it 3 times, using a P/S, P/S, and H/H Minfernal, and recorded the battles. It worked the first and third times, failed the second. Interestingly, in the second, One-of-Many was in kill range of Surge when I cast Soulrush, and if I hadn't been following the script, that's what I would have used.
Foreboding Curse didn't miss in any of the 3 tries. Given that its odds of hitting are 90%, misses won't be common.
On two attempts, the Claw got off an extra Shadow Shock before dying; on one, it got off two extra Shocks.
You can't expect challenge battle strats that you ever have to do once to be 100% sure, and you definitely can get runs of bad luck when there is RNG, but I'd say the strat is good enough for purpose.
I agree that fights like these for the Fel Beasts of Argus can have plenty of RNG, but what I think Olania is getting at is that there may be too much RNG in this fight for it not to be labelled as an RNG strat.
If you look at the comments below, there are several mentions to the strat not working. Additionally, there are mentions to other strats that do work.
I know it is late in the expansion, but maybe updating this fight to state RNG or adding alternative fights would be useful. If Olania is like me, they might see a pet comp that is labelled as RNG and immediately search for an alternative pet comp that is not RNG, or read through the comments section for additional information.
Mana Surge (Mindslayer dies here - bring in Mailemental)
Junk Mail (Mailemental dies here - in comes Energized Manafiend)
Surge of Power - One of Many dies here
Last pet slot can be open to a lot of different pets because One-Of-Many has Shattered Defenses debuff
I didn't have Hungering Claw leveled so I used Nightmare Bell (1,2,1) and managed to use his Dark Rebirth just before I died which gave me a chance to do more dmg with my first pet. After he died I followed above mentioned strategy.
I had trouble getting this to work at 23 my hungering claw did 3 shadow shocks at end not one before dying and manafiend just wasnt strong enough to finish so I put in servant of demidos did the soul rush and 2 magic swords and still had 872 health when one of many died. My minfernal was B/B too.