I was just curious if you get the minions if you pick myth as second or do you just get the cards you see. Same for other Schools. There are a lot of cards you get in your primary school that is not on the training list.
Exactly; that's why they're called secondary schools. You can only own spells that aren't from your school by learning them from a trainer (there are trainers in all the worlds). You can also buy treasure cards and special equipment, but you don't really own a spell through those methods.