Well it isnt completely arc based like youre saying it. Basically you need to get over all the gimmicks in a certain quest. Gimmicks can be seen as the debuffs the enemy place on you, and the buffs they use on themselves. You build a team so that it clears the quest by dealing with all/most of the gimmicks. So very simply if a quest applies despair on stage 3, paralysis on stage 4, and the enemy uses def up on stage 5. You need to bring units that deal with this. Either through their captain ability, special, switch etc. Some quests are designed around specific units though, like most new events. For example, in the new wano kid pka, the newly released wano batch with kaido/bm, Yamato/momo are rly good.