Ok so i have hit a dilemma so i am making a rain team for x and y so naturally im hatching eggs for a perfect Politoed and so i hatch a shiny Poliwag so i check with the IV guy and lo and behold it has perfect IV's but the problem with this is that its ability isnt swift swim so i wont get drizzle on Politoed. So my question is use the shiny one or keep hatching to find one with perfect IV's and a perfect ability?