we could have two differente way to use talents, one for the character himself, (specs, skills, etc) and one aside only dedicated to weapon that the character use, meaning the most you playe with a specific type of weapon, the more you can access to specific spells only usable if you wear this weapon,according your class ( example, i am a necromancer , and i use a staff all time, fight after fight i earn some weapons point and i can use now a spell to summon a big mad dead cow that charge my ennemi and explode, doing aoe dammage, and only me can use this because im a necro staff user , my friend also play necromancer but he use a wand and a sword , with the equivalent number of weapon point he can buff the all partty for like 10 sec with a crazy stat then improving his haste for each party member that has took benefit from the buff) again the spells i mentionned are example, but it just to show you a way to have this feelimg that your character is unique, and of course when you unlock the weapon spell yoiu keep it for life, but only can use it when you equip the appropriate weapon