This is a really cool idea! I think it would benefit from giving the player a bit more visual feedback though.
It took me a couple of plays to realise exactly how the value affected the attacking. Perhaps if every time you took an action that cost/gained value that number appeared on screen (above the players head maybe?) then it might be easier to make the connection between taking an action, and using/gaining value.
Did the value affect your damage output? Or just the amount of times you could attack? I wasn't 100% clear on that.
Also, your game name - I SEE WHAT YOU DID THERE (and I approve :D)
- Joe
(if you have time to give our game a go, we'd really appreciate that too ^_^ )