1. I agree with the idea of having only 1 arcane spell: summon hero, no summon champion
2. Training heroes in cities is fine with me, but
3. They should be trained in one of the existing final buildings like War College, not in a new building for this purpose alone.
4. There should be no more than 6 heroes for a wizard at a time. A hero is rare and not a mass production material. They also need their items, which is limiting to 6.
5. The production cost of heroes should be very high. Say the production cost in hammers = 1.5* (the cost of researching the new summon hero spell + the summoning cost) [in mana]. If choice of hero is allowed then even more expensive.
6. The number of races being able to train heroes should be high.
2. Training heroes in cities is fine with me, but
3. They should be trained in one of the existing final buildings like War College, not in a new building for this purpose alone.
4. There should be no more than 6 heroes for a wizard at a time. A hero is rare and not a mass production material. They also need their items, which is limiting to 6.
5. The production cost of heroes should be very high. Say the production cost in hammers = 1.5* (the cost of researching the new summon hero spell + the summoning cost) [in mana]. If choice of hero is allowed then even more expensive.
6. The number of races being able to train heroes should be high.