I've seen it happen and it's usually around 40-50
There are many places online where one can purchase platinum chains. One can purchase platinum chains at popular on the web sources such as Amazon and DY Jewels.
It's all random. It could take you many encounters or be really lucky to just get a few encounters.
The chains are a chance of luck. It is like the lottery, sometimes they come up early, whereas sometimes they come closer to the end. Chains I have had vary from 15 to 212. Just keep your hopes up high and stay determined.
It can be anywhere from one to thousands of them. It all depends on how lucky you are. As the chances of encountering a shiny Pokemon are 1/8192, you shouldn't expect to get a shiny Piplup on the first try. There isn't an exact amount of soft resets you have to do, either.
'Kay, I don't see what this has to do with Self-Mutilation. But why don't you just walk in the grass? There's plenty of Starly in the grass.
go to lake verity and search until you find a shiny psyduck. then go to the other lakes and every Pokemon will be shiny. It really works. You can also find quite a few shiny Pokemon in Victory Road. I found a shiny Asmurill
25 chains = 550 yards.
37 miles is 2,960 chains.
400 chains = 5 miles.
House of Chains has 1021 pages.
Narcissus in Chains has 424 pages.
1.7 furlongs in 17 chains