I was really taken by how amazing this documents cover is, but I'm glad the content within matches. This is a useful supplement for adding NPCs to DotMM. The Mages are interesting and well fleshed out, yet the writing is also tight and succinct. There are good dungeon maps for each mage's lair as well as the minions you'll encounter there. My only issue is that with the lair maps I assume there would be more writing on encounters and traps within but no such luck. So this is a great framework for me to make additions to Undermountain with, but not something I would run "out of the box". Overall, check this out, the characters really jump off the page and it's only $1!
[4 of 5 Stars!]