Generic high-fantasy setting (d&d 5e if you want to use specific spells), what security or defences would mages use to secure the place where they keep all their magical stuff? I’m thinking decoys, reinforced and hidden location, guards (hired or summoned), locks (both magical and mundane), booby traps, and spells to discourage or confuse passing snoopers.
Also it’s going to vary depending on the resources of the wizard and of the players. Is this an independent student wizard protecting their studies that a low-level party could reasonably break into, or is it the king’s secure vault of confiscated magical horrors that’s a final boss for the campaign?
I’m looking for ideas for fun obstacles, and critically that the players can’t just sidestep with a single low-level spell!
One of those Bugs Bunny / Yosemite Sam door-after-door-after-door affairs.
Basically have two short stretches of corridor with a door either end. The door at the far end of corridor 1 leads to corridor 2. The door at the far end of corridor 2 leads back to corridor 1.
The mechanisms triggering this are pressure plates along the centre of the corridor 2, skirting along the sides will avoid triggering the plates and allow you to go to the next room.
If a player makes a hole in the door / destroys the door entirely (which I’m pretty sure my players would), they’ll see the distant room magically change to the corridor when they step on the pressure plate.
Very fun, I like it