Passive Abilities

[Gas Giant]

So I had the idea to give some of my classes passive abilities. EX: A DnD style Evasion ability. Now I can give a class say, a 25% chance to dodge magic. But it gives that, along with weapon and armor proficencies and what not all at level 1 (or what ever level I start at). What I want to do is give those bonuses at varrying levels, like I would a regular combat skill. That way when my rogue/dodgy/swashbuckler type character levels up I can give him/her passive bonuses that dont need to be used in combat, like casting Haste to go faster, they're just always there. So far all I can come up with is making a new class every time I want to add a passive and just give it the same name. I'm hoping someone has a simpler solution that requires less redundant information cluttering up my database.

[Hatsukuro]

I had created a script that allows you to create passive skills. These passive skills buff up the character who has learned the skill with a state in the database. Give it a look and see what you think.

http://forums.rpgmakerweb.com/index.php?/topic/4693-passive-skills/