Great feedback - admittedly we spent all of our time getting the core of the game built out and did not have a lot of time left for balancing :/ but if you like it and are willing to stick around and try it in the future; we do plan to improve the mana economy!
We did want the orcs to be sort of high-damage-but-temporary-fodder type units, and hopefully once we get mana flowing more freely they will feel more viable to play.
Thanks again!