About the mana thing, I suggest we sorcerers have a minimum of 103 mana pool(based on our level that I'm taking as 10)
lvl.0 spells->1 mana=6 mana per day
lvl.1 spells->2 mana=12 mana per day
lvl.2 spells->3 mana=18 mana per day
lvl.3 spells->4 mana=24 mana per day
lvl.4 spells->5 mana=25 mana per day
lvl.5 spells->6 mana=18 mana per day
Calculating the mana that we need to perform lvl.0,1,2,3(6 times per day),lvl.4(5 times per day) and lvl.5(3 times per day) spells I came with a mana pool of 103 to be able to perform each level of spell the number that was allowed for sorcerers each day.