I'm 50/50 on these kits. They seem neat, but rupture is extremely demanding on IDs, and I don't see a lot of count in their kits
The current "meta" rupture team would be:
Mao Ryoshu: S1 is count neutral on clash win, S2 & 3 are count neutral / positive on clash win & at speed. She also just does ludicrous damage.
Mao Outis: S2 is always at least neutral, positive when unopposed. S3 is positive when at speed and unopposed. Also just does ludicrous damage, and has Ebony Stem.
Cinq West Meursault: S2 can prime a rupture stack when at speed, and at 15&3 he's completely count neutral.
Devyat South Rodion: Can prime 15&3 with her S3 and Talisman. S1&2 are neutral when at 15&3. Also just does ludicrous damage, and is extremely bulky
Lantern Don: S1 is count positive, S3 is count neutral, and S2 ~can~ be count positive, but is better used just priming a stack. Also picks up Talisman after Rodion, making her a potency monster.
The 6th slot is a float, but I usually use Lantern Yi Sang. He doesn't need to win clashes to do damage, he can prep a stack on death, and he can stack aggro to create a "push" turn.
I can see Gregor probably replacing Yi Sang, as pride is important now in Rupture for Ebony Stem. I don't know if Si Rodion will be able to beat out Devyat Rodion though. Either way, don't pull for them, as we're late for a Walpurgisnacht.