I've only very recently started to look into this game strategically, so my team is pretty cobbled together (focusing on Rahab because of my only SSR):

Main:
Cassiopeia (max lvl)
Nemesis (lvl 40)
Nike (SR, 50)
Meretseger (40)
Poseidon (~22)

Sub:
Cybele (~22)
Baal (40)

Eido:
Water Kaiser Dragoon (main)
Elec, Water "regular" dragoon
Lindwurm
Bugbear
Furfur

These are just my highest level/tier units, excluding fire (Amon 40, Kagutsuchi 40). I also have a pool of untouched rares, I can list if needed.

Anyway, I've (impulse) bought a Rahab, nothing else for either side of the event. The team can auto Beginner and auto Standard (if I step in to activate a single heal). Expert is impossible, or I'm just bad at managing skills (I end up running out of enemy buff clears, or debuffs to enemy). Which items from the events should I prioritize getting, and which difficulty should I farm?


expecting the "worst" case scenario, the advice is to reroll because i have garbage units(?)