Toss in some Stjel Magic Eaters, problem of high level ninja-ing casters solved.
~Rex
How about we just stick to the problem of low level dungeons being farmed to extinction and leave our pet peeves out of this?
I don't like ninja looters anymore than you do, but since there is nothing in the POTM rules against ninja-looting, it is a fact of life.
Once you accept that fact, we can move forward with real solutions instead of coming up with the same old/same old that is never going to happen.
Now, put your thinking cap on.
I did. The Primary perpetrators of this are the Casters. There is nothing that is even a remote threat to them in those areas (as opposed to the non casters which can die with quickness), hence, balancing out the environment with something appropriate is a simple and fair solution. While there are many multitudes of critters that can't be effected by mundane materials or ability, there is effectively, nothing, that has the same effect vs the magic (ranged KD bolts do not count). Not seeing many of the Anti-Magic monsters (or Areas), if any, and something like the Magic Eater, well, promotes teamwork.
Suddenly that section of the player base that gets shouted down so much for just wanting a shot at areas, has a use beyond being a guard, a potion-a-holic, or hoping for an eventual Monster PC application.
Several dungeons have things that (since the dungeon is effective for melee people to be in) will WRECK a melee persons day (Rust Monster, Ambushing Grey Ooze, Monster needing +2 or better weapon to be hit). This keeps them from annihilating those dungeons on a casual reflex, or prompts them to form teams. There is no Caster Equivalent, unless I have missed the Rhakshasa Dungeon.
Any implementation of a new crafting system is going to cause a Grind Issue with the Massively top heavy player base we have here, so if you want to start it on a fair an equal footing, you either balance the playing field effects, or, you balance the playing field, with a vault wipe. Either way problem solved.
~Rex