You need successes to heal damage with the heal skill, whereas magic requires you to spend willpower but it “just works” (misshaps notwithstanding). Note also that you can’t tend to critical injuries with healing hands (but with heal skill) - you need mend wounds for that.
What’s the difference between heal skill and healing hands spell? Seems like they do the same thing but the spell costs WP.
You need successes to heal damage with the heal skill, whereas magic requires you to spend willpower but it “just works” (misshaps notwithstanding). Note also that you can’t tend to critical injuries with healing hands (but with heal skill) - you need mend wounds for that.