Question

Why does shedinja have 2 hp ev's when it only has 1hp?

Answer 1

Because Satoshi Tajiri and Gamefreak have a sense of humor.

Comments

I agree with jester. There can't be any other reason.

Answer 2

Another reason because that is the most unique stat that any pokemon has and shedinja is the only pokemon with only one hp and such that it cant increase no matter what.