Roy Mustang of Iwagakure was called forth to fight the stranger from the village hidden in the Clouds. He was not afraid, he knew what was expected of him.
Lightning, he thought to himself. The Village hidden in the clouds specialized in Lightning. Roy would then decide on a subtle technique which would give him the advantage in the fight, blinding his opponent through the use of small Earthen particles which are sent towards his opponents eyes. The particles are invisible to the naked eye and so cannot be seen by his opponent.
What can you do against something you can't see? Roy asked whilst containing himself.
This is quickly followed up by the release of chakra into the ground of the blinded man. The chakra would cause the Earth to shake, creating tremors which would easily unbalance him, causing him to fall to the ground should he not have any means of preventing that from occurring. However, as Roy had finished performing the first jutsu, causing temporary blindness, he'd reach for a Kunai and through it towards the man as he uses his second (shaking) jutsu, in an attempt to catch his opponent off guard. The Kunai would be aimed for his opponents right thigh.
Earth jutsus bringing a man from the Land of Lightning to his knees. How shameful.