[quote=Wraithblade6]
Ok. So a necro mancer gets 3 schools from either mystos or destros. What school lets them raise the dead, and how is that done? Do they have to go to the river every time?
[/quote]

Click on the Hider called The Ivory Tower, Mages and Guardians. Then scroll to the very bottom. You'll see a list of the three branches and the schools under each branch. Yes, they go to the river each time to bring back a soul, but you don't have to go into detail every time you visit.