Walkthroughs for custom maps.

Zemsta Mutare. I just finished it. No cheats, difficulty 7-4-1.

kolotok, awesome! I'm speechless!
I thought that the anti-magic garrisons on the Blue lands could only be broken through with months-long breaks for replenishing troops. But the Dragon can be defeated. I specifically checked this: I enabled Flight for Mutare using a cheat code, flew over all the garrisons, and then attacked. An expert berserker captures the Azure and Titan troops around them; you need to defeat the Naga kings first, and then move away so that the Azure troops attack the top stack of Titans. The remaining stack of Azure troops is blinded; we reduce their defense with a devastating beam and overwhelm them with our troops – I had vampire lords and their clones. There was barely enough mana. By the way, he can't move from his location: I just checked in the editor (so, the library, to which only he has access, is a bug by the author). You just need to prevent him from receiving troops from another hero.
And what did you do about the author's mistakes? I played the self-corrected version: instead of hero camps, I placed Mutare and Alamar, and removed the Angel Alliance from the Dragon's hand: it was this that caused the game to crash for me and others (I was playing SoD, were you? In HotA, this bug has been fixed, as far as I know). I also marked 2 things that should also be changed: the Grail is better buried in a specific location, inaccessible to enemies (with 4 obelisks, they easily dug it up), and 1599 Hellspawn should simply be given to the player immediately in a specific location (how did you "enjoy" collecting them?!).
And here are 2 comments about necromancy:
1. I didn't plan for it and didn't collect skeletons, and the King of the Dead's Cloak and Vampire Mantle are not on the map, and you can't get enough liches. In addition, in the final stage of the game, all the "meat" has long been destroyed, and there are too few troops from the Necropolises (by the way, it was the Necromancers who placed the Grail).
2. The author, even if he had such a clever plan (which I am not sure about at all!), did not hint anywhere about the need to use such a strategy. But I'm afraid there was no clever plan at all, and the goal was to "create a cool map that no one will complete!" (some authors have this "childhood disease"). So far, I haven't seen a single accurate, reliable report that someone has completed this map to the end, winning. There is only a screenshot of a video that is no longer available, where one player broke through the last, most difficult garrison (it seems on the 59th or 69th month), later he attacked the Dragon again, but could not defeat him. And he was playing in HotA, which creates some differences (for example, due to the accumulation of troops in external dwellings, it is possible to assemble a larger army).