And I know you don't want anyone bringing up ML5* units, but I want to make an exception for people who chose Arbiter Vildred as the free Conmections unit. I only had his S1 at +3 btw, and with Dust Devil he did a pretty good job at disrupting the flow of Judge Kise and Ruele's moves while also damaging both at the same time.
Judge Kise being dead only lasts for a second, but it gives your whole party a breather by not having to top off so often in case Tamarrine's Idol form and Momo's S3 are on cooldown.
I needed those mystics to reach pity for Straze so desperation finally made me do it. 😂
Landy lv 60, bloodstone, spd 210, atk 3.6k -- She's clutch here, procs so many s3, self cr push on s1 lets her attack constantly. Bloodstone gives nice heals too.
Angelica lv 60, idol cheer, EE increase cr of highest attack, spd 180, hp 23k -- Front line tank, she pushes Landy's cr when hitting or getting hit.
Elena lv 60, touch of rekos, spd 240, hp 14k -- mostly extra heals from jkise aoe, fast to cleanse debuffs, bonus invincibility before jkise s3.
Tamarine lv 50, potion artifact, spd 180, hp 11k -- I just threw her in, gear wasn't great (super low hp), but with speed she procs s3 and then s2 for the attack up for Landy. Dual attack is also a bonus.
Arky when you can, when the barrier is down. I waited the barrier out, got Landy's s3 up in the meantime.