>>21946073There's no way to guarantee a bred pokemon will have 6 perfect IVs. Destiny Knot picks 5 to send down to the offspring, and the last is random. If you give it to a hexaperfect parent, you guarantee the child has at least 5 perfect IVs and a 1/31 chance of being hexaperfect itself if its random stat is also 31. Read pic related for all the basics of breeding.