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With the most optimistic approach and a bit of luck, it's the second option. As for buying troops... 30-40 Centaurs + 12 Gargoyles + 4 Griffins are enough to defeat almost all monsters on the map up to level 3, inclusive.
New here? I'm Roha — want a quick tour?
Recently, I noticed that even though quite a few people play Heroes 2, no one is making mods for it. Heroes 3 has WOG, HotA, and many other mods. Is it really the case that no one is making anything for Heroes 2? I suggest creating a mod for Heroes 2, and I ask those who don't know how to make mods (I am one of them) to post their ideas here. I'll start.
1) Balancing.
I suggest strengthening level 6 creatures, with the exception of dragons and titans (naturally, by increasing their cost). One option is to significantly increase their growth rate. You could also reduce the cost of titans; they are too expensive.
2) New castles. I'll say right away that I borrowed many ideas from somewhere.
I suggest creating the following castles:
Inferno (hero - demon)
Imp --> Devil
Gog --> Magog - ranged attacker
Cerberus
Demon - flying unit
Ifrit --> Ifrit Sultan - flying unit
Devil --> Archdevil
Dwarven Castle (hero - lord of dwarves) (but you need to replace the dwarves in the Elven Castle with something)
Blacksmith
Dwarven Warrior
Bear --> Battle Bear
Ballista --> Steam Ballista - ranged attacker
Dwarven King
Lava Dragon - NOT a flying unit
I haven't come up with a name for the castle, the hero is a Heretic.
Thief
Possessed --> Berserker
Heretic --> Occultist
Medusa
Basilisk --> Great Basilisk
Fallen Angel
I haven't come up with a name for the castle or the hero class. This castle is unique; it has 4 flying units but no ranged attackers. It is inhabited by the Ashar race - tall, swarthy people with purple, webbed wings on their backs.
Raven - flying unit
Pegasus - flying unit
Ashar Warrior --> Ashar Veteran - flying unit
Air Elemental --> Light Elemental
Guardian (An Ashar who has lost his wings. When he lost the ability to fly, a lot of energy was released, and he became much stronger than ordinary Ashars. Such warriors guard the approaches to the palace of the Ashar king, but sometimes they also participate in military campaigns)
Sun Dragon --> Light Dragon - flying unit
3) Changes to existing castles. In my opinion, the Knight's Castle needs to be completely reworked. I suggest the following version:
Spearman --> Veteran Spearman
Archer - ranged attacker
Priest --> Inquisitor - ranged attacker
Rider
Paladin --> Crusader
Angel --> Archangel
You can also rework the Necromancer's Castle:
Skeleton
Zombie --> Zombie Mutant
Lich --> Archlich - ranged attacker
Vampire --> Vampire Lord - flying unit
Dark Knight
Necromancer (weak in combat, but can cast Animate Dead, with SP depending on the number of necromancers)