Pokémon X and Y Playthrough Discussion

The trick is to breed a ditto with the pokemon you want. When the pokemon baby has the IV's the ditto has, switch the dittos, until you get it's stats (at least 4 of them), then start breeding the babies together (most likely you'll have many variants of the IV stats at that point) to get the 5 iv's then 1 negative one. You can shoot for 6 perfect iv's but destiny knot only covers 5, so it would be incredible luck to get that one missing Iv with 31.

If you knew all this, well hopefully other people will learn from it

Breed two with 5 perfect, them each having the one the other doesn't, then destiny knot those two together till you get the right nature on a perfect little baby.