I weave a single handseal and channel my chakra into my target's mind and proceed by manipulating his five senses. First I manipulate my target's sight, making him see two waves appearing to either side of him, each only two meters away from his location. Then I manipulate his hearing, making him hear the sounds that would accompany two waves crashing down towards him and finally I manipulate his sense of touch, so that first it appears that drops of water are hitting him before the actual waves do and finally the pressure he would feel if real waves would've crashed into him from two sides, causing mental damage.
Advantages:
- Attacks the opponent from two sides simultanously
- A simple defense wouldn't work since it's an illusion
- The opponent has to think fast due to the small distance between him and the waves
Disadvantages:
- Easily avoided by shooting yourself away from the waves, no need to realize it's a genjutsu
Battle use;
I would first use a technique to throw my opponent off balance, world shaking could do the trick for that. Then I'd use this technique, putting alot of pressure on the opponent as he has yet to regain his balance while two ways approach from quite a small distance, so.. the opponent would probably escape upward as that's the easiest way to avoid in such a situation so my final technique in this combo would be something that attacks my opponent from the sky, like.. thundercloud :3