>>2852065Going with RPG mechanics, some games will have minimum and maximum level requirements for entering specific dungeons, with the character's 'equipment level' determining whether or not they can enter.
After queuing with a group of her lower-leveled friends, an adventurer finds that her armor puts her too far over the equipment level limit and she has to strip down to be weak enough for the dungeon. This could even be pushed further by saying that she's so powerful they need to have 'negative level' equipment on her to keep her below the limit, so she ends up with a pair of vibrating panties that lower her INT or handcuffs that reduce DEX.
An adventurer finds out about a new system of inventory management that allows her to carry an infinite amount of gear by having equipment she's not actively using teleported to another dimension.
But this inventory management system also considers armor to be 'unused' except for the exact moment a weapon is about to hit her - meaning she's walking around naked as any armor she touches simply disappears.
A 'spell of intangibility' that turns the caster incorporeal for a few seconds - but her clothes immediately fall off when she casts it.
Another spell that swaps equipment between the target and the caster, with a naked enemy ambushing the party and using it on one of the members before fleeing.