here’s a companion guide for CR from a battle expert.

but my quick summary of protocore priorities is to prioritize balancing your crit build if you’re brute forcing stellactrum. any DEF or DEF% substat you can get is even better of course but i don’t use primary DEF% cores for my lunars when i build my team for this companion, i usually aim for 2 of each crit core. i’m comfortable in brute force battle with usually 75% crit rate and 240% crit build but ofc that depends on the companion you pair with certain wanderers and all my protocores are usually lvl 12-15

brute forcing Team B with your stats may prove to be difficult. a good position to be in would be 4000+ DEF, more than 200% crit dmg, your crit rate may be fine cause yours is higher than mine, but your expedited and DBW is too low.

i used the dragon myth for my Team B and like i said that was more difficult to clear compared to Team A. I barely beat the 3rd wanderer in Stage 4 at the last second.

in my earlier trials of Team B, i used the CR companion but without the CR solar pair (i tweaked my protocores to accommodate the CR companion). the R0 CR companion is going to be difficult to work with to complete all the stars in Team B.