its the final evolution of the water pokemon starter, it know the move water shruriken 
[img=https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcSVfIq1QrzJAOuIhzA_jsgcChYuenrfqgNV4olG2mFdXF0s_fua] That what he looks like it the game and in battle