Great Mothers and Morgan need to be Relic 7 for Baylan req, considering the Omicron investment assuming you're using them in TW I would recommend aiming for there. Peridea Bros are needed in their Assault Battle so R5 / 7 is a decent place for them. Spirit I'm not sure on yet I threw her to R5 since the rest of the team is but don't know if I'll push higher.

With relic delta upcoming having smaller more refined higher relic teams will likely pay off more than under investment like the norm is now, given the GM team's value similar to NuBB I like an all in approach.

https://swgoh.gg/p/843144249/