[@pkken]Stats are honestly kind of pointless if there's not an RNG/dice/etc system in place to make use of them. If they're meant to be general comparisons of which characters are stronger, faster, etc that can be done just as well--if not better--through the writing and the nature of the characters. 

If stats are meant to show progression, you could do that through hard limits that get lifted over time, or power aspects that get added over time. For example, if someone has  the power to shoot lasers out of their eyes, maybe at the start they can only do it 3 times a day before their eyes get super sensitive like after an eye doctor's visit, and as they develop they add more uses. Or, maybe at first all they can do is shoot lasers in short bursts, and then after a training arc or a plot progression they're allowed to add the ability to charge up super-shots or maintain a long-distance beam.