Min requirements:
Lillie (EX’d, you will need the extra sync buff when you first sync nuke with her). 3/5 is not really mandatory(pls correct me if I’m wrong), but the self heal passive from her TM comes in pretty handy.
Kiawe (2/5 minimum as you need his TM MPR to proc to fully buff crit, and also you get access to potion MPR x 1 tile and 2 x master healer sync grid tiles)
BP Sophocles(5/5, having him EX’d is highly recommended)
If Gladion(mid) starts off with heat wave, reset. This includes if he decides to use TM and follow up with a heat wave at a later turn(which will also be a confirmed crit). If Kiawe’s TM MPR failed to proc, reset as well as you need 3 buffs to buff your team’s crit.
For Lillie’s grid, you can feel free to grab other tiles/go for other build if you feel that its necessary(such as adrenaline).
Lucky skills:
Lillie: Vigilance
Kiawe: Vigilance
BP Sophocles – Critical Strike 2