[0.4] Spell masteries

[elnelson]

Hello, otlanders. I had a cool idea about vocations getting masteries on spells, every vocation could have one of three mastery.
For example:
-Sorcerers;
Arcanist: +25% more damage on fire,ice,earth and energy spells
Ritualist: +25 more damage on summoned creatures
Spellsinger: +25% cooldown reduction on spells

-Druids
Holy: +25% more damage on holy spells
Necromancer: +25% more damage on summoned undead creatures
Chanter: 5 more party spells with 25% mana cost reduction

-Paladins
Crossbowman: +25% damage when using crossbows.
Bowman: +25% attackspeed when using bows
Paragon: +15% damage and +15% defence when using spears

-Knights
Warden: +25% defence when using a shield
Crusader: +25% attackspeed when using 2h weapons
Berserker: can dual wield weapons (only one handed weaps) giving +25% attack speed but -50% damage

Players will get it mastery with npc and change it with the same npc only if player has promotion

It seems a bit complicated but if someone could give me a clue how to start, would be aweosme.

Im using tfs 0.4 trunk 3777