Added after 15 minutes
And also, note that they have the "anti-hit-and-run" checkbox enabled in their settings. That is, if you cast something in the 3rd round, for example, you can only escape/buy your way out in the 4th round. This checkbox is generally used in fixed matches, and is usually disabled in random games.
Added after 1 hour 23 minutes
Oh, never mind, I was mistaken; you can't build vampires in the second castle according to their rules. But still, it's difficult. Especially if you let the Necropolis player grab a few villages.