User blog comment:Martialmaniac/Nen beats page/@comment-31525652-20170825004101/@comment-31525652-20170825152931

Agree with you that the Guardian Spirit Beasts are an intersection of the two things.

Bill already hinted they are similar to curses when Kurapika asked him, so yeah that's probably why many of the parasites are conjuration based. Overall, I agree with most of your points. Just one thing is that Bill mentioned that parasites might attack or protect the host (so not exactly like curses). This also makes sense with Kurapika's explanations in the latest chapters that the GSBs might not prioritize the host's safety.