WeaponBirth: Ferrum Anima

Characters have the following innate statistics:

Strength: Primarily increases physical damage
Power: Primarily increases EP and ethereal damage
Endurance: Primarily increases HP
Agility: Primarily reduces enemy's accuracy and velocity damage
Skill: Primarily increases velocity damage, accuracy, and critical rate
Spirit: Primarily increases EP and reduces ethereal damage

These have an effect on actual statistics such as damage, accuracy and the like. However, the problem is that all the actual statistics change depending on the stats of who you are targeting. Your accuracy will be different depending on the enemy you're aiming at. So on the status screen, these are just shown with their descriptions. This is sort of kind of like Fallout 3, except these increase as you level up- they're never fixed and only increase when you do special things (haha!).

Characters also have several traits. These are just effects that are with the character which make them more unique, hence the name. For example, some characters might have double or triple the critical rate as a trait, or they're immune to poison/whatever. There may be different ways of getting more traits, but the most common way for a character to get one more is to class-up (they reach the next class and get more skills and traits).

Then of course there are the skills. These are things you actually slot to the ASZXC keys and you use them during battle with those keys. It customizes the controls and lets you change what you do during fights at the same time. There's no such thing as a basic attack, you typically just have a set of skills that do things with your equipped weapon.

This is about as simple as I can make an RPG system without resorting to RPGMaker-blah levels of boring, and as interesting an RPG system without resorting to bizarre new-agey naming schemes and stats that make people wonder "what does this do? what's going on?". The simpler I can make it without it losing fun the better, but this is about as far as I can go without tossing out something fun.