This rule is IMPOSSIBLE to track in the game! I gave an example with Heroes 1. When the computer attacks with a hero of level 1 against centaurs and they die. You will never know if it was a computer player or not! This cannot be tracked by you, or by me, or by anyone at all:) .
Therefore, it is better to allow it! I would even say that it should be allowed and this point should be removed from the rules!
Sincerely, VDV_forever
Regarding the example given above, a level 1 hero is not considered "leveled up"; a leveled-up hero is one who has gained at least one level.
Alan, is it allowed to buy a defeated hero of a computer player if he is level 1?
Charity suffereth long, and is kind; charity envieth not; charity vaunteth not itself, is not puffed up,
Doth not behave itself unseemly, seeketh not her own, is not easily provoked, thinketh no evil;
Rejoiceth not in iniquity, but rejoiceth in the truth;
Beareth all things, believeth all things, hopeth all things, endureth all things. Charity never faileth...