My WoL dabbles in any trade, any method or style of combat, and makes an effort to learn all she can about every culture she encounters to better understand them and to expand her own toolkit.

Bit of an RP answer, but that's how I see it. :P

Besides, who says a healer can't be a hero? Someone's gotta keep the fighters fighting, and we aren't exactly fighting alone. For the most part, at least.