@GrayBypasser
@Add1152000
hmmm, how did it go? Basically, everyone has natural born skills and rely on those. Raust only had and could develop heal, while healers are suppose to be able to do other things like cure poison and shit, so he's defective as a healer. What his teachers taught him was how to manipulate the fundamental energies (mana and chi) that fuel skills, letting him do things like skills. So, it's not that he had a skill to do attack magic but that he learned how to create he spell manually. Bringing it up to the potency of someone who just HAS the skill is difficult, and he wasn't able to do that during the time they were teaching him. Meanwhile, while he trains to increase his control and capacity for these energies, he's still known as defective and working with that one group he belongs to who, as he becomes more effective, mistakes his growth and progress for their own and convince themselves that anything he could accomplish with this handicap should be well within the norm for a normal healer. Outside of their group, people merely see the guy who couldn't do anything well in a group that's rising to the top and assume he's being carried, since then and now he's paired up with people who have good skills.
I think this all should have been explained already but this chapter was really vague about the details of his training and progress for some reason.