Wasting Magic is the special magic of LD's usual setting. It will be explained in-game, but if you've played in another one of my games, then you know what it is.
Wasting Magic is generally gone from this part of the setting and will not be used. The land has basically become magically generic, unlike the usual setting that we adventure in.
Monsters were quick to move into the gap after the Wasting Magic disappeared however, and have beat back most attempts to settle the lands that were formerly uninhabitable.