Are you serious???
In my opinion, there are far more ideas!!
For example, the Races and units are similar; the necros are almost identical
Heroes don't walk without an army, they can cast spells, etc.
Anyway, the list is long, and you know it yourself... And after that, you want to say that only the name and a few ideas came from Heroes??????????:eek:

I think it's because
There is no continuation of the series
There are no familiar heroes
The creatures (e.g., gargoyle) are being mocked
And the castles (e.g., Dungeon)
And Heroes IV is better
More spells, rather than 10 for one school.
Monsters can move without a hero, which is very convenient when there's no room in the army.
(Whereas in HeroesIII, when there was no room, monsters that wanted to join would disappear.
Heroes could gain ranks
Creature alignment
Schools of magic