I guess a way to make this truly work in a 3d environment is to adopt a miniatures perspective overlapped with a RPG. If you used the physical measurements such as used in Warhammer, it would make alot of sense in addition to the inherent abilities you've already developed. Transferring your skills/attributes/abilities to the physical nature of combat as in Warhammer would be an amazing synergy.

Imagine rolling for Zartan's chameleon influence in terms of charisma level from an rpg perspective overlapped with the physical ranges used in warhammer (or any other tabletop miniatures game) for weapon range, rate of fire, defense, etc., etc.