It’s not 151 since you get Mew as a reward for completing this secret ... which only requires you to acquire one of any of the basic shiny cards. You have 10 options to choose from, so it ...
Ditto’s chosen disguises changes from time to time, so you’ll want to make sure you know what the disguises are currently if you’re Ditto hunting — especially if you are after a shiny.
All the info you need about the shiny sandwich recipes for each type of Pokemon in Scarlet and Violet is in this guide. Shiny sandwiches are the new way to boost shiny spawn rates in the latest ...