Necropolis vs. Dungeon

Wow, Haven, Dwarves... And you're planning to take down all three at once? With a single Castle? That will be very difficult to do, and believe me, a heavily leveled-up Dwarf is worth 2 Sinitars. Haven is no joke either (since I assume they each have a gold mine there). There are 2 strategies here: either you break out of the zone with Caspar, clear everything quickly (including the Dragon Utopia), and seize someone's castle, or you go into the meat grinder and wait until they kill each other off, then take them on one by one. Leveling Lukra against Sinitar might work, but against the others, you'll need something else. And it's a mistake not to want Zoltan — blocking antimagic or vampirism, or even just an Armageddon, would significantly reduce losses.