How to give Stealth Rock to my Omastar?

Question

So I'm trying to make a "trap" Omastar - it is the only Pokemon that can learn all three "trap moves". It's already got Spikes and Toxic Spikes, all I need now is to give it stealth rock. But seeing as though I have it in Black, it's not a TM and I would not like to waste my time gathering shards for the move tutor. PLEASE HELP! Any answer is much appreciated!

Answer 1

Praise Helix

But the only way to get an Omastar with stealth rock is through move tutors in the new games Omega Ruby and Alpha Sapphire. Where exactly, I do not know but according to the Database that's the only way.