Edit: To preface this, I want to clarify, since I really don't want to come off as complaining or in any way maligning Thosha - I love your guide, and I really appreciate the work that you're doing! I understand the goal is true min-maxing and so if a thing is possible without using resources it should be done that way, I just think the guide could be a little clearer on how RNG dependant the Orcent fights are.
So I got bored. And I decided to do the Orcent fights and figure out what needs to happen to win.
I did finally win, and it took 23 tries, of which 17 were aborted when the Orgasmic Rogue evaded one of the first two defensive strikes.
As far as I can tell, the following is required to win:
Orgasmic Rogue: You must hit both defensive strikes. The Rogue cannot hit you with Fatal Knife in the first two attacks or you won't survive the rest of the fights. (as a note: guide says 2-3 piercing hits, it almost always took me 3-4)
Ghenalese Orc Mage: Cannot use his fire spell. Anything else goes, but fire does extra damage to Orcent so you won't survive the Arclentian Warlord.
Arclentian Warlord: Must not use savage attack regularly or you won't survive. You must have roughly 1100 HP to start the fight or a single savage attack will kill you before you can use your potion (a wild blow won't). Get lucky on damage rolls, hope he misses an attack or two, and hope he doesn't use his savage attack and you might win.
My winning round included the Arclentian Warlord missing his first attack, using wild attack on his second, and then missing at least one more of his attacks while I slowly killed him with Piercing/Defensive strikes.
Conclusion: This fight is hugely RNG dependant and if you aren't lucky you can spend a very, very long time trying to win. I won on my 23rd attempt entirely because the Arclentian Warlord missed the critical attacks that do the most damage. Adding a single other orc potion makes it much more reliable, but honestly the real roadblock is the Orgasmic Rogue.
I actually think the spire fights are easier, since you have a sacrificial tank in Implevon. I only tried two or three times and very nearly succeeded except for Implevon dying too early, so it's probably doable more reliably with some decent luck.