*uses orochimaru's technique and takes over Edwards sasuke...lol. I'm fighting with my sasuke bio, the new way is Pain>edward>korra>Neilson)
Sasuke tells himself that apparently his opponents are skilled, while looking at korra, sasuke sees how something begins to form in her hand,not knowing what it is, he stares, as its released, sasuke realizes its sand, therefore sasuke forms a chidori in his right hand, the chidori spreads, covering a circular area(using elemental strengths and weakness it shows that sand is weak to lightning, which means that the chidori that spread would destroy your sand and still come at you, and also putting ranking and the description of the lightning jutsu then your sand would be destroyed and the lightning would come at you), the lightning shatters the sand vortex and comes for korra and toph.
As sasuke spits out uses the lightning technique, at the same time the mizukage simultaneously makes use of his suiton chakra. Channeling it into the water source from korra's and toph's left side which is sasuke and the mizukage's right side, the mizukage makes a giant wave to crash on toph and korra, the water will rise up and crash on them..
Sasuke had already had already used his lightning technique, and as the giant water wave is about to crash on his opponents, sasuke swiftly forms 5 hand seals and causes four pillars of earth to rise around toph and korra, the giant water crashes on them and the pillars emit lightning which shocks the water, the water conducts the lightning which then electrocute korra and toph!