Good point on that!<br/><br/>So here's basically how it works.  In D&D if you fail something, then you just kind of didn't do it.  In Dungeon World if you get a 6-, I get to make a move.  So you are absolutely free to use Arcane Art as many times as you'd like!  You could spam it all day!  But any time you get a 6-, I'll be doing something sinister!  It may be that I'm putting bigger, scarier things before you!  Maybe someone senses your magic and you end up with a Sydney being mind-jumped situation!  Maybe the very winds of magic and music turn against you!<br/><br/>Basically, you can do that and heal everyone to full health if you'd like, but your beautiful music could pull a dragon to you if you get that 6-! ;)<br/><br/>Does that explain it?  You /may/ not even need that much healing, once you add the half of your health I /think/ people will be pretty close to full.