Looks like your overuse of wishes has summoned me! Rage Shenron! I may look small but I am the strongest out of the Shadow Dragons! With my electric slime I can absorb any electricity around me and use it to make a bigger version of myself! I can even be as big as a city with enough electricity!

You best repent for your abuse of the dragon balls, or feel the wrath of the mighty Rage Shenron!