@Pixelatic I literally just ran around in a friend's safari that catered to fire types, and counted how many times I ran into the type of pokemon I wanted a shiny version of. If you want to shiny hunt, inside the friend safari that is, I believe the odds for shinies are 1/512(?) Somewhere around there. You don't need repel's or anything like that the only hangup is the friend safari only.
I would however recommend bringing a pokemon that has the ability Illuminate or Arena Trap to increase the encounter rate. That's pretty much all I did
Here's a super helpful link that explains pretty much all legitimate methods of getting shinies, this is where I actually found out about Justin and this website xD https://www.youtube.com/watch?v=1cT410kgzXk
You'll see it in the video but here's the link to the counter that Justin mentions: http://pokemonforever.com/pokeradar.php
If you want to change the counter to pay attention to chains and whatnot just click Dex Mode on the bottom right I hope this helps!
I would however recommend bringing a pokemon that has the ability Illuminate or Arena Trap to increase the encounter rate. That's pretty much all I did
Here's a super helpful link that explains pretty much all legitimate methods of getting shinies, this is where I actually found out about Justin and this website xD https://www.youtube.com/watch?v=1cT410kgzXk
You'll see it in the video but here's the link to the counter that Justin mentions: http://pokemonforever.com/pokeradar.php
If you want to change the counter to pay attention to chains and whatnot just click Dex Mode on the bottom right I hope this helps!