The four standard really. They are still rather an early civilization so light and dark magic are still in their earliest stages with healing being the only known light magic while summoning basically counting as part of dark magic.
I should mention outright (Tho it’s heavily implied in my CS) Crane is one of the few who aren’t intimidated by Talia’s affliction. Judging by the timeline, it’s not entirely far-fetched for him to have been a student of hers at some point.
Someone showed me a nice model of posting that we nicknamed “1, 2, then you”. There’s no specific turn order in this system, but you typically wait for at least two people to post in between your posts.