Noob question about leg hero weapon

Won 250 matches for my leg weapon which should do 8 damage but instead in pvp it only does 5. What’s with that ?

I’m guessing this is Xbox One. Just remove and re-add your hero and you’ll do what damage you’re supposed to.

You don’t even have to do that much, just click on your hero when you’re at the 'fight" stage, and make sure you have all your attack and magic that you’re supposed to. Usually only have to do this the first time you’re using your hero, and not every single time.