So, I recently made a guide about how to get shiny pokemon through chaining here
. There are, however, other methods to obtain shiny pokemon in X and Y that I did not cover. I'd like to go other those methods briefly here.
1. Chain Fishing
Chain fishing is slightly similar to regular chaining, but requires much less effort on the players part. Basically, the only things you need to chain fish are a fishing rod (Any one will work), a Pokemon with suction cups or sticky hold ability (this guarantees you get a fish every time you cast the rod) at the front of your party, and a place to fish. That's it.
Cast the rod out with the sticky hold or suction cup pokemon always at the front of your party. Continue to real in fish consecutively. You can run from the pokemon this way without breaking your chain as well. Also running into different species of Pokemon while fishing WILL NOT break your chain. The only things that will break your chain with this method are: Not reeling in the fish in time/reeling in too fast, leaving the area, getting into a non-fishing battle, or turning off the game.
After this it's just a little bit of patience until you got a shiny. From what I've heard most shiny Pokemon with this method will be found around chain 30-100. Though most of it is luck. I have tried this method before, but have yet to get a shiny from it.
2. Masuda Method
The Masuda method is by far my favorite way to get shiny Pokemon, as you can control what IVs they have, their natures, and their abilities through breeding.
Let me back up a bit though, what is the Masuda method? The Masuda method is a term used for breeding Pokemon from two different countries to increase the chances of getting a shiny. It is called that because Game Freak director Junichi Masuda was the one who first programmed this feature into Pokemon Diamond and Pearl. It has continued through the generations of games and is still prominent in X and Y.
So here's how it works. Trade for your wanted Pokemon with someone from another country. Preferably Japan, Germany, Australia, France or Korea. I actually got most of my foreign pokemon through wonder trade, so that works too. These Pokemon will often have a small box next to their name in PC or when going through their description that will tell you what place their from. If the Pokemon does not have this, it cannot be used for the Masuda Method. I highly suggest having a Pokemon with Flame Body or Magma Armor ability in the first slot of your party as well. These Pokemon will cause the eggs to hatch faster then they normally would.
Then get another Pokemon, from a different country as the one you have, and start breeding them. I suggest having a foreign ditto and just breeding it with whatever Pokemon you want to be shiny. After this just hatch as many eggs as you can, you can keep the non-shiny offspring for trading or release them to conserve space. Eventually you will hatch a shiny.
This method may take anywhere from 2 hours to a week. It highly varies. I have managed to breed a total of 7 shiny Pokemon using this method. Most of them I got anywhere between 30 to 160 hatched eggs. Though it is completely possible to go way past this number, as I've been breeding for a shiny Charmander and have surpassed 500 hatched eggs without a single shiny yet.
A lot of it depends on luck. I have also heard that tipping characters well in the game gives you a higher chance of finding a shiny Pokemon. I'm not sure if this is true, but if so it's worth the time to tip well.
I hope this guide helps you all find your desired shinnies!!