The Wizardry Magic System is detailed here.
The Maven is typically a bright, talented, and motivated young Wizard who shows great promise but focuses on specific aspects of the Wizardly Arts, ignoring others. This tendency may exasperate their instructors, or perhaps they aren't choosing to do this so much as a pre-bias on the part of the instructor is causing their specialized learning pattern. For example, if a Maven's mentor is an Invoker, then that mentor will likely teach the Maven much more about Evocation magics and nothing at all about Conjuration.
Mavens tend to go with what they are good at as they advance, and can become renowned masters of a particular type of Magic if they survive into old age. Graduate Wizards sometimes sneer at the Maven's failure to grasp certain aspects of the Wizardly Arts, but those sneers are often wiped away by a display of the Maven's mastery of their chosen fields of study.
NOTE: This is the base package used to build "Specialist" Wizards. Name the Specialist School Skill as the recipient of the +2 Bonus and select School Ineptitude for the Schools the Character cannot use. However, they have the option of not taking the School Ineptitude Disadvantage and leaving open the option to learn that type of Magic later.
Cost Ability
34 Wizard VPP (30 Pool)
3 Scholar
12 Any 6 Wizard School Skills (Choose from: KS: Abjuration, KS: Conjuration, KS: Divination, KS: Enchantment, KS: Evocation, KS: Illusion, KS: Necromancy, and KS: Transmutation)
4 +4 with any 1 Wizard School Skill
1 Sharp: +1 INT
1 Literacy w/ Native Language
Value Disadvantages
0 None
+55 Total Cost of Package
Cost Options
*17 Higher Spell Level Pool: +15 Pool
5 Bright: +5 INT
10 Brilliant: +10 INT
5 +1 with All Int Based Rolls
2 WF: Wizard Group (Dagger, Darts, Staff)
-15 Psychological Limitation: Self Centered (Common, Strong)
-10 Rivalry with other Wizards (More Powerful, Group, Professional, Unaware, Outdo)
-5 School Ineptitude: Phys Lim: Cannot Learn KS: {Magic Skill} or use Spellcraft to Circumvent (Infrequently, Limiting)
-5 Social Limitation: Disreputable Master (Master is generally scorned, disrespected, or has a questionable past -- this colors peoples perception of character) (Frequently; Minor; Not Limiting In Some Cultures)