As another reviewer stated, this DLC/mod makes the AI super aggressive. It's basically total instant war against every single AI wizard, even the ones that are supposed to be peaceful and friendly (Ex. Other Life/Nature wizards of the same race). There IS a great deal of cool new buildings, units, and spells. The DLC really does a fantastic job with that, and this would add a lot more replayabity...if you like playing 1vs4 constant and total war. Even on lower difficulties, there really is no diplomacy with the AIs. They will all attack you as soon as they can no matter what you do, and they're now really good at picking at your weaknesses. And they do seem to have map hacks, as they will always know exactly which of your cities is the least defended and make a beeline there. If you're looking for a challenge with tons of fights, this could be a good DLC. I mean, it's only 3 bucks. Just wish there were options for some AI allies for less aggressive play. Couldn't even explore ruins or the other old stuff as I was constantly having to fight off all the AIs coming at me from every direction. Missed opportunity.