Thanks for playing!
What kind other information would you like on the game page?
All units can attack, but Ancients (blueish green) are weak, whereas Artisans are strong (but cost you crystals).
Unfortunately right now units attack one unit and then stop. You need to micro manage them. It was in my list to add "attack back it attacked", but I didnt have time.
I will add at least this info to the page, let me know if you think I should add something else