As you may already know, the health bar for your knight at the bottom of the screen isn't accurate. Due to the graphics used, there's only three images - empty, full and half full.
Sometimes you think you have one full bar left, but only to find out you actually have less than a full bar when you try to revive someone. Or with a completely full health bar, you move over a big heart thinking it will be left for later when you really need it, only to have it consumed because your full bar isn't really full.
Since the health bar is made of static images instead of being calculated, I suggest to add an option to allow us to toggle a number overlay on it. When turned on, the game will show us numbers like "10/10" or "7.5/12" on top of the health bars.
It may be a problem, but the health in the bar shows significant amounts of health you have. Sure it's good to be more accurate, but it's kinda unique for a game to have this health bar. When in the middle of a heated battle, anyway, you will not check your health bar about how much you are going to give a friend. I have only observed two type of players- players that would try to do anything to revive a teammate and players that would rather fight solo with whatever health they have left. I personally do not like the numbers in this suggestion. It gives too much to think about. YOU HAVE THREE AND A HALF PIPS OF HEALTH LEFT: FIND A HEART! With whatever health I have left, I just need to see if i am close to dying or even enough to revive a friend.