Walkthroughs for custom maps.

I confirm: it's an excellent free archiving program. You can download it here: http://7-zip.org.ua/ru/ It also compresses Heroes save files very well (I recently confirmed this): a series of consecutive saves from playing a single map fit into a 7z archive that was several times smaller (even though the map files and saves are already compressed). Now, regarding the "La reconquista de Viduan" map and your save file specifically: Attacking with Balthazar as he is will result in immediate death. 1) Where is the Berserker? I don't play that way! And we need to attack Madre with fire magic, otherwise we have no chance. 2) We need to get the Spirit of Despair, Golden Bow, and Dragonwing Cloak from other heroes. 3) We need to get Phoenixes so that we can cast magic first. I ran Prospector and clarified the situation with the Berserker: it's very bad. This spell exists in 4 instances: 1 - with the purple hero Arondelor (actually an Efreet). But he's nowhere to be found, even after checking all the heroes in the tavern! 2 - in the city of Losthold in cell 19, 2, 1. But he is completely inaccessible (this is intentional): he is located in a corner of the dungeon. 3 - with Madre herself. 4 - in the city of Colmena in cell 133, 5, 1. But he is also inaccessible. And there is no Tome of Fire Magic anywhere. So, we either need to get Arondelor, or... start over. We could install the Grail in the Conflux and get all the spells allowed on the map, but you have probably already installed it in the Necropolis.