How hard would it be to get a shiny lapras in regular gameplay?

tbh, very difficult.

although breeding using masuda method can make getting one a bit easier.

that is however for the 4th generation games.

Pretty hard. Best of luck. O:

Masuda method would be the best method but it's still 1/2048 which is pretty rare...

I've been breeding for a Yanma for a while now to no avail :P

Beep boop! This post has been locked due to old age. The necro rule in this forum is 6 months. Please see the official rule listing for more details, or file a ticket if you have any questions.