I recently lost a skirmish and noticed that I did not regain the mana from the troops that I lost. This worries me slightly, since I am in an unfavorable position on my two remaining battles. What happens if I lose so often that I don't have the mana needed to keep fighting?
Any surviving soldiers are reverted to mana - so if your low, try to avoid big exchanges
you gain mana from gaining levels , which needs exp. So capturing and fighting in general will gain mana as you level up