Game is a bit confusing to me
Why is my energy going down? There is no indication whatsoever on what is happening (i understand that it goes down when you click and when the thingy at top reaches zero but it's not intuitive)
What are the green particles on the enemy? Are they healing themselves?
What does "base damage" do?
Why heal cost 100 when you can barely get 10-15 points(?) per enemy?
What is "greater luck"?
Also, there are moment when you don't have enough point to upgrade anything, is this intentional?
Drawings are really nice, i like it : )
Not bad for the first prototype, keep at it.