I unno, I was just brain storming really and kind of wondering why they just don't let Spirits Within return MP by half based on the damage it dealt when used in a combo? Poke a mob in the crotch for 600, get 300 MP back. Yay a free Holy Succor every 60 seconds or something like that... Would probably solve their MP issues I would think... Or they could nail the real problem here like everyone else has said. Make defense actually mean something or give them an HP boost.