5 Second Useless Power

If you could have a superpower (ex flying, rewinding time, mind control, invisibility, happiness, etc) but it only lasts 5s (and there’s a refresh period where you can’t use the 5s power again, for say 5 or 10min), what 5s superpower would you want and what would u do with it? (basically you can’t just keep stacking the 5s + 5s without a break).