Walkthroughs for custom maps.

Trying to beat Zemsta mutare. 95% of the map is very easy, but at the end of the map, the issue arises of breaking through the Anti-Magic garrisons: 2 garrisons with 3333x7 units and 1 garrison with 9999x7 units. While the first two can be breached with losses, the third one is impossible. How do you beat this map, or is there a bug to get past such garrisons without losses? The Armor of the Damned and Cloak of the Undead King cannot be assembled, only the Angelic Alliance is available, but it’s of little use when stats are already at 99.