37053 silver pegasi! Have you read that in "Heroes 3," if the number of creatures in one stack exceeds 32767, "something terrible" can happen: an overflow occurs, and the number "goes negative"? If you save the game often, it won't be a huge disaster; you'll just need to return to the last save with a positive number of creatures. But in general, such a quantity of creatures is overkill—it's scary to imagine what kind of armies are opposing you!
But the main thing is that the game itself is fine now.

The thing is, the opponents' forces are ordinary—a couple or three legions per stack. All the pegasi are joined neutrals, upgraded in Ramparts. I specifically left one stack empty for them; they fell by the legions. The first to join were the battle dwarves guarding treasures on the island. Black and Gold dragons, liches—all from neutrals. I passed the creatures from my native Towers to Dragon (later, after finding a tent and visiting Red, neutral legions of angels, champions, and crusaders joined Dragon. Red wasn't smart enough to take them himself).

Regarding the overkill in the stack—I mentioned 60000 imps above—the game runs normally, no catastrophe. Except perhaps for the sudden arrival of Gelu, which I didn't expect. I had to surrender the castle and flee in shame(.

Added after 1 hour 2 minutes
Yesterday I returned to the Overlord again; I just can't get past the griffins. I waited a long time(( I try again and again, spreading out archangels and wizards this way and that; with a berserker, wizard magic, and just brute force, I kill 3500 griffins, but by the last 500, mana is exhausted, they wipe out the wizards and finish me off((. After loading and losing once more, I called the AI a naughty word, which attracted my husband's attention. Traitor, he bet on the griffins—you won't get through, no matter what:D.

I decided to distract myself with a new game, also from Maygwana's maps, "The Dragon Heart 2.0".

http://heroesportal.net/maps/view/3961

The task is to kill everyone; you cannot lose Mutara Drake.

We play as Rampart in alliance with Blue, also Rampart. Mutara starts in the central rampart in the north; in the left and right corners are a couple of neutral ramparts. To pass to them, the guard demands 50000 gold. Below, beyond the black and white guards and hordes of azure and rust dragons, are the lands of Pink (Tower), and roads to other opponents. We visited the black tent initially; others are scattered across islets and guarded by dragons, some of them also on the opponents' lands.

We also have the heroes Gelu, Ryland, and another one in a Robin Hood hat, whose name I keep forgetting:D. They are on the mainland to the south, where there are a couple of neutral ramparts, which I captured in the process.

The game is listed as difficult, but in reality, it's the opposite. Having captured the outermost ramparts in the north (one gives 10 gold dragons every 2 weeks), accumulated strength and taken the Shackles of War, guarded by a group of crystal dragons, I decided to take the scroll from the left rampart, guarded by 50 gold dragons (judging by the guards, it's either flight, a city portal, or dimensional gates). I smashed them; the scroll itself was also protected by about 90 dragons—it turned out to be a city portal with the ability to choose the city. Great! After that, the game reached a turning point. At this point, a hero of purple emerged from the whirlpool with a clear desire to capture my nearby Rampart. I immediately teleported and smashed him on the spot. The AI didn't expect such a move... nor the subsequent steps. Jumping between cities and gathering strength, I began the expansion.

The Blue ally turned out to be simply great! After leveling up Yanova, he sent her to capture enemy territories. First, she took the strategically important Necropolis on the island. This is where it got funniest—the AI threw the forces of the enemy's key heroes at capturing the Necropolis, forgetting about female cunning)). Whenever one of them landed nearby, I immediately transferred Mutara and wiped them out, taking the artifacts.

In a couple of weeks, the opponents lost almost all their main heroes. Only Solmir (pink) remained cautious, who learned flight and started flying in for reconnaissance, fleeing for his life at the sight of Mutara. But he too made a fatal mistake. Intentionally leading Mutara away, I decided to catch him in an error. And I waited—he flew to the whirlpool, hoping I wouldn't have enough movement. With the Admiral's hat, that's not needed—I sailed over and crushed him. Later I bought him back at the tavern.

From there, I simply took the castles, killing the remaining heroes. Since the paths to them were guarded only by squads of azure dragons, I became curious—what are the tents for? I went into the Dungeon and found the answer. Beyond the passage of guards, groups of 50 azure and fairy dragons guarded parts of the angelic alliance, books of earth, fire and water, and scrolls with mountain portal, flight, and dimensional gates. I smashed them, took them, and passed some to my own.

My guys just stayed sitting in the castles, sipping beer. I already had the alliance, the titan's thunder, part of the relics of the father of dragons, which I gave to Gelu. But I rewarded my ally Yanova, who fought alongside me, with a full combat set, portal, flight, and dimensional gates. And she did not let me down. Only the last opponent remained—orange, who had lost all his Castles and was shaking with fear in 3 Conflux castles in the dungeon. Yanova moved toward him and wiped him out in no time. The game took 6 months, although I could have finished it by the 5th, I was just having fun in the dungeon. A rare case for me where a hero reached level 40 and 88 skills by the 6th month.