How do you get the Metagrossite if you missed the shiny Beldum event in ORAS?

Question

If yes then how?

Answer 1

Yes, after you beat the champion (Steven) for the second time, you will receive a Metagrossite from him.
Source

Answer 2

Once you beat Steven in the Elite Four for the second time, he will give you the Metagrossite.

Source

Comments

Like the new pic

Answer 3

Steven gives it to you after you beat the Pokemon League