Well, the game contains a picture for another hero called "necromancer" which was never implemented. I doubt the devs still have the time to add this hero. They had announced a full rework of hero skills and level system, shortly before the updates ceased. I would be interested to learn what they had in mind. Anyone any more details?
As for the suggested
Armourer:
- Defence Leadership is missing from the game for a good reason: to encourage a more aggressive and active gameplay. Such an ability could cause games to stall for a while.
- Adding another hitpoint appears extremely powerful to me. Not sure this could be made to work.
So let me suggest the opposite:
NecromancerReduces the hitpoints of every unit in his own stack by one (minimum 1) but adds proper strength (not leadership, i.e. cannot be countered by an archon) . This could encourage a risky gameplay style, where you burn through lots of cheap units, but it is risky since you need the hero to survive each battle (so maybe the necromancer gets 1/4 of the stolen hitpoints for himself). From the gameplay, it would be similar to the assassin, but instead of warding it can be countered by high strength units.