I decided to pick this up for the title alone. If you come at me with the title, "Battlefield of the Mind", my imagination starts mixing Ditko Dr. Strange comic book art, psychic combat and scenics from the 80's movie DREAMSCAPE. This adventure brought me somewhere close to it. I'm prepping it right now for my local convention.
I appreciate that there is a content warning in the Adventure Primer, but would have preferred to see it on the advertisement itself. The overview is a bit more than I needed in narrative. The adventure hooks were O.K. and have good utility. I am a big fan of learning new vocabulary, so I appreciate the use of avaricious (it means greedy). The adventure provides a great sidebar to let the DM know where it fits in the Rime of the Frostmaiden plot flow and also provides the means to present this as a one-shot. The plot flow is easy to follow (Won't spoil it). There are githyanki in this adventure doing what githyanki do! That was pretty exciting! There is an interesting phobia table that captures the swath of different phobias that players may be challenged with, and provides an alternative to this tables use to meet player comfort levels.
There are parts that call for the DM to build a random Dungeon of the Mind-which I think is cool. There comes a point where players appear pigeon-holed so they can advance to a series of battles of the mind, but they come with benefits (you'll see what i mean). There is a reconstituion period between each battle so players don't feel like they are entirely running a gauntlet. If they do reach the end. I think that the BBEG is appropriate and challenging. The Conclusion to the adventure is a lengthy boxed text, followed by narrative that likely will be read to players as well. I understand that the design was for convention play, so I get the utlity of the boxed text wrap up.
DC adventures can be challenging to make original; however, I believe Teddy Benson and Thomas Valley put together an adventure that is fun, challenging and worthy of your adventure collections. My overall rating is only based on its reading and preparation for play. Good Gaming.