Harnak's page

So I am trying to understand how this works. If the creature was awake but you were undetected/unnoticed, you would keep your condition by using the Sneak action (so Stealth check vs their Perception DC), provided that you have cover or you're concealed or invisible or whatever.

However, rules for waking up unconscious creatures say that if you're trying to be quiet around them they automatically make a Perception check against your Stealth DC at the start of their turn to wake up or not.

So, to sneak past them and avoid waking up them (and keep your unnoticed and undetected conditions), is this your Stealth check vs their Perception DC or their Perception check vs Stealth DC?

Actually, the specific rule in the unconscious condition seems to be there for you trying to keep quiet if you're making a loud noise. So I believe it's a Stealth check vs Perception DC. In which case, if they notice you and consequently wake up, do you become hidden (Well, unless you're in the middle of nowhere and so you become observed since they gain their vision back)?

So, I have a few doubts about what you can do with multiclassing.

1) Can you use wands and scrolls of any spell of the class you're multiclassing into?
2) Can you use staves of any spell, up to the maximum slot level you have, even if that is the level from your primary spellcasting class (Ex: 5th-level Wizard but with only basic Cleric multiclassing, can cast 3rd-level cleric spells from staves)?
3) Can you add spells from other traditions when you multiclass, using the Learn a Spell activity? Rules say so, but lists seem to be separate. So a Sorcerer Cleric would add spells from their bloodline tradition to their repertoire and divine spells to their cleric list, but could they add (for example) divine spells to their repertoire?
4) Can you use spell slots of your primary spellcasting class to cast spells of your secondary class? I know the other way around doesn't work because the slots you gain through multiclassing are explicitly said to work only for the spells of that class, so I believe this is also no.

Thanks to anyone who will clarify.