See, I've found Superpowers are too hard to adjudicate fairly in a TTRPG with classes or spells. I think the conversation between players and DM that the PbtA systems depend on allows for players to have superheroes exactly as strong as they want them to be while still being put into challenging, interesting, and tense situations (eg: "Sure, Superman, you do have the power to shoot lasers out of your eyes. But you only rolled a 7 so I'm going to offer you a hard bargain. As you fire your eye lasers the BBEG has a split second to react and he throws Lois Lane from the rooftop while jumping out of the way from your lasers. You can either continue your assault on BBEG and put some serious hurt on or you can dive after Lois. You don't think you have time to do both. What do you do?")