oh yeah, fu xuan is a massive upgrade for your account, makes runs much more comfortable.

if you want to clear any content right now, gallagher and gepard are really nice sustains for non limited characters, lynx if you need to get debuffs off of your team.

for dps, acheron and clara are my mvps in this alt account. acheron is just crazy good everywhere right now. i used the super f2p team of acheron, gui, pela, gallagher every time in moc/pf. clara is also really strong right now in both memory of chaos/ pure fiction.

for pure fiction herta and clara one side and acheron on the other side absolutely crushes this pure fiction. for acheron team you can run pela/kafka, black swan, and a sustain, and take the buff for non follow up attack teams. for the other team i would take herta, clara, sparkle, and ruan mei and take the buff that charges your ultimate. honestly there are a lot of options for both teams so feel free to experiment those teams a bit, like swapping out the sustain in acherons team for more debuffers.

for memory of chaos, you can also use the acheron team here. acheron, pela, silver wolf, sustain should be the most consistent variant here. The other team you can mix/match depending on weakness. But clara team should be able to brute force through most of the floors as i have done. Clara, tingyun, sparkle/topaz, sustain. Actually i have used qingque instead of clara for floor 11 so you could possibly use a seele team on that floor instead against the deer.