Ultimatum and profits

I have tried to farm Ultimatum (all scarabs besides most expensive which make all rewards as a catalysts; 10 waves + boss) with my CWS Chieftain and get a little bit upset.

Inscribed ultimatums with divines have low rate drop, chaos orbs have a low rate too. Doing Orbs of unmaking, scouring and fusing Inscribes ultimatums is a trash.

May be i have to do a catalysts ultimatums. It's not a cheap one though.

it was pretty good in previous league, i think it got nerfed in this one.

emiricles had a lot of success with it

In my experience ultimatum was primarily a bubble-gum printer. The divines, inscribed that were worth anything, and catalysts were mostly a bonus. It also depends on the current market rates for the catalysts, as well as the prices for the inscribed ultimatums. Just because you have a 4x divine dupe inscribed ultimatum and you're selling it for 2 div, it's really only a "steal" to those people who know they have a build that can easily and successfully complete the inscribed ultimatums, which tends to be a very niche number of people. For the level of investment ultimatum requires, its still a net positive.

May be you know, how to tackle with Ruin in Ultimatum encounter (blue apparition)?
My CWS can't do it.