Imagine an MMORPG that has gear with independent skills as stats instead of attributes. So you create a class and the class comes with no skills other than a basic attack/block, every skill your character will posses will come from gear itself. The max gear has stronger or cooler skills and higher damage. There might not even be a need for character levels, your character is simply the strength of the gear that he possesses and advancing through different zones is not dependent on character level but instead what gear you have acquired will determine how far you can go in the game.
Also, there would be no need for character classes which would add to the immersion of the game. Which class you are is entirely based on what combinations of gear you have equipped and what skills or bonuses they give to your specific character.
Something along the lines of this might be a cool idea implemented in an MMO like WOW or any MMO.