I'd probably go Gorr, Elsa and Chee.
I'd probably go Gorr, Elsa and Chee. What fights would Chee be good for
I'd probably go Gorr, Elsa and Chee. What fights would Chee be good for Anyone that bleeds (besides Adam since you need buffs). Her bleeds are guaranteed on her mediums, so you'll deal damage every combo.
I'd probably go Gorr, Elsa and Chee. Northstar is going to be a pain without a miss counter though, so brace for that. You could do Jabari instead of Elsa for that, but I don't know if her bleeds will be consistent enough, or the uptime on countering miss to be high enough to make it worth it. You could use Gorr hitting through the block on the fight.
You can use a 6* as well nd honestly aarkus is a beast there. Open a loyalty crystal if you can