[Endoperez]

The AI is good enough to beat you for the first times you play. The AI is very easy to beat if you use competitive strategies (say, you rush out for Evocation 4/5 for a spesific spell (Blade Wind, Falling Frots) that your mages can cast a lot and that works against the AI's nation. If you try multiplayer, any strategy you might want to try out will be too advanced for the AI to handle, and you'll defeat it. If you try to find out strategies on your own, the AI will be a challenge for some time, but I don't have any idea about how long it would take. However, even experienced players occassionally die when several AI nations happen to attack at the same time, and some nations and some settings make the AI much more challenging.