Board Thread:General Discussion/@comment-30768370-20161216215533/@comment-26484417-20161217003028

From how I understand it, all of these are Shinsoo manipulation in one form or another. However, abilities are feats or entire specialisations of Shinsoo manipulation that require a very particular talent that is either inborn or bestowed. While sorcery (so use of "spells") appears to be a ritualistic Shinsoo manipulation that seemingly facilitates use of contracts that do not involve Guardians, which is a bigger deal than how it may sound.

Also, it's unclear whether sorcery can be learnt by just about anyone who wishes to learn it, or if some special talent is required. And though it appears that certain--and usually very potent--kinds of sorcery can only be accessed by contracting a "demon" (e.g., Hoaqin's soul-eating, Sachi's thorns, and probably more), it appears that regular sorcery doesn't require any such contract. In any case, it's difficult to tell how Baangs figure in any any of these, but it should be safe to assume that if one is "casting spells" or "using an ability" the number of Baangs they can deploy for other things should be lower than their normal limit; after all, Baangs are--among other things--a matter of concentration, so even if spells and abilities don't use Baangs per se (which I doubt), they're still going to require concentration.