legendary pkm master
Water Pokemon Master
No.
Each SR you do has a 1 in 8192 chance of being shiny.
This does not mean that after 8192 SR's you are guaranteed a shiny.
You might find a Shiny Rayquaza in those 8192 SR's, but many, many people have surpassed 10000 SR's for a shiny, some have even gone as far as 100000 SR's before.
that's far too much free time and patience. I would break the game..