I was looking over your earlier post and I since I had all the SBs you mentioned I figured I'd see if I could get a clear. It wasn't a mastery run but I did get an expert clear by switching out shelke for OK. Lost 2 to damage and 1 to actions
Kill shot:
Setup:
I switched over to earth saber since I could afford to bring protect to help with body slam. Elarra got DMT and I used her USB after the second attack to heal up and get quickcast up. Galuf goes two grand charges then hesitate just a bit to time stone press to hit after savage mode goes up. If he crits it should break savage mode, if not just restart. I was getting ~15k crits and ~9k if he didn't. He should have enough meter at that point to get his CSB up. After that it's pretty straight forward. I use OK to give 1 bar to Bartz to help get his USB/BSB combo up and then gives the rest to Elarra for her BSB or USB
Magicites:
Main:
Earth guardian (lightning res inherit)
Sub:
Siren (fast act)
Catastrophe (none)
Midgardsormr (none)
Evrae (deadly strikes)
I went with earth guardian as the main since I was getting my ass handed to me in phase 3 and needed it to survive.
Edit: You can probably shave a few seconds off that clear time with some practice. I didn't anticipate Galuf getting paralyzed late in the fight and had to go a couple of rounds before I could break savage mode again.