Relic Dungeon drop conditions

Ok so I have a pld on the Zodiac step aka getting the dungeon drops And I was going to start my drg t get it to light farm stage so kill 2 birds

My question is this can I get 2 of each item or only 1? And if it's one if I upgrade my pld nexus to zodiac will I still get dungeon drops or do I need a class on that specific step to get the drops? As in I'd upgrade pld and would have to upgrade my drg to the step to keep getting drops

Sorry if that's confusing just trying to maximize my time on the relics

the drops go into your key items bag. No way you can have 2 of the same drop in any way. You're gonna have to do them separate.

After you finish the zodiac quests you can re pick them up and do again, you don't need a nexus class to do it. And you can only get 1 dungeon drop at a time cause it checks it off on the quest when you get it.

My question is this can I get 2 of each item or only 1?
Can only get one per quest chain.

And if it's one if I upgrade my pld nexus to zodiac will I still get dungeon drops or do I need a class on that specific step to get the drops?
Dungeon drops are determined by the quest, not the class. As long as you have a quest requirement for thaty particular dungeon drop, you can play as whatever you want to get it.

In addition...
You CAN start the quest again immediately after finishing them, without having a relic up to that point.