I think that Conjurers (Myth Students) should have the ability to conjure more than just myth creatures. For example. The Lost souls from Unicorn Way. Perhaps after defeating 10 of them a conjurer can then summon them as a minion. And higher ranked monsters require a larger amount of defeats before being able to conjure them as well.
myth student are cool they dont need more spell and the lost soul is death school minion
I know they are death school minions but I think a conjurer should have the ability to summon minions of all types. That way you can have more of a choice as to who's at your side in battle.