With his sensory activated, Tobirama has knowledge of the hands, or something that interferes with Minato's kunai's. To go through the trouble to save a simple kunai lead him to believe that it was most likely an FTG Kunai. Nonetheless, to avoid the kunai from nearing him, Tobirama claps his hands together, forming a tornado around him, with the spinning motion strong enough to deflect the kunai and push it off, meters to the side. Should Minato proceed with telephorting to the kunai, he would be sweeped by the tornado's spinning motion, disrupting his original plans. The tornado would cascade to a large wave, which would continue towards Minato at full strength.
(Suiton: Suishōha) - Water Style: Water Shock Wave
Rank: C-B-Rank
Type: Offensive, Supplementary
Range: Short-Long
Chakra Cost: 15-20
Damage Points: 30-40
Descripton: This technique allows the user after claping their hands together to make a spiralling vortex of water to form around them out of nowhere in a vortex like manner. The vortex then proceeds to cascade into an wave of water that rampages towards the intended target or all around. The size and power of the technique is dictated by the amount of chakra put into the technique, varying from C-rank to B-Rank.