Just so any Guardians of the Galaxy film fan doesn't shell out for this back issue and get disappointed: The Guardians of the Galaxy discussed here are not the ones that are featured in the films. A group of Ravagers inspired by this GotG does appear in GotG Vol 2 and GotG Vol 3, led by...
Since we are talking about copyright terms, I have to point out The Wizard of Oz film was released in 1939.
Even when the film enters public domain (edited to add: a quick Google says 2035), some elements (like the Ruby Slippers) remain trademarked I believe.
The artwork in Dungeonland was primarily done by Tim Truman, with some additional pieces by Jim Holloway.
Jim Holloway did almost all of the illustrations in The Land Beyond the Magic Mirror, with one piece by Jeff Easley, and a couple pieces that I am unsure of.
I like his ideas (as well as some of those in the comments), but I don't see them as a replacement. Rather, I would add these into the mix to create a broader tiered spectrum of control resistance options. Listed in rough order of increasing power:
Saving Throw Proficiency
Saving Throw...
The staff of curing in AD&D 1e and 2e avoided 3.x's wand of cure light wounds problems by limiting the device to functioning once per day on any person. Also, staves only held 25 charges, as opposed to wands with 100 (50 charges in 3.x). And while the staff of curing was one of the few items...
I think the early release date for DDB is October 28, and the general release date is November 11, so a little under 4 weeks for those of us who did not buy a bundle on DDB.