I was looking at the code, and thought about an interesting unit idea. I've played some MMORPG's, and some of them have fighter classes that build up rage/adrenalin while attacking. Someone could make a fighter unit in glest that gains EP by attacking, and has skills with EP requirements. This fighter would also have a negative EP recovery. Troll Beserker comes to mind. Now all we need is a model.
Can a unit gain HP by attacking? If so, imagine an undead that had health degeneration that gain life by attacking other units.