Placements for first 6 stages pretty straight forward. You can add more function sets as needed if your units are weaker. Note that Raven is pretty tanky so if you’re struggling to clear earlier floors you will either have to borrow a support or stay on Vuln 3 for a bit.
All units in video are 5 star, with Kuro being level 70. However I’d been running these same placements and strats since before the level 70 patch and since before Kuro / Ange / Croque was even 5s. Main thing is really just to Ange lock Sacrificial on Raven so she can’t recast the shield. Ange’s ult was unnecessary in this video but if you’re running lower stars / levels you’ll definitely want to use it to improve consistency.
These are the only 5 units I’ve worked on so far so yea, that’s what I’m using for everything… Black Hole 1-139 cleared using the same team, all endless Ch5, and Hard mode Ch6.
Cheers.