You’ll get Audino’s Mega Stone (Audinite) from an NPC at the Battle Resort, which is only accessible after completing the Delta Episode. The specific NPC you’re looking for can be found in a cottage on the eastern side of the island.
But first you’ll need to trigger a short cutscene at a nearby beach.
Audinite Location (Step-by-Step)
After completing the Delta Episode, Norman in Littleroot Town will give you the S.S. Ticket.
You can then board the S.S. Tidal and travel to the Battle Resort using this ticket. When you first arrive, you’ll be greeted by a couple of familiar faces you’ve met throughout your playthrough.
At this point you can get your Audinite.
Start from outside of the Battle Resort’s Pokémon Center.
Step 1: Begin heading east from the Battle Resort’s Pokémon Center.
Step 2: Continue east, past the Day-Care Center.
Step 3: After you pass by the white picket fence, turn upwards and go straight up to initiate a cutscene.
Step 4: When you find Looker on the beach, talk to him.
After this, you’ll be able to get the Audinite when you visit Looker in his cottage on the resort’s east side (which we’ll cover below).
Step 5: To get to Looker’s cottage, return to the Pokémon Center and ascend up the stairs directly to the right of the Center.
Step 6: At the top of the stairs, take the stone path on the right. This will bring you down a smaller set of stairs – just keep going east here.
Step 7: Make your way east and turn up to reach the island’s east docks. This is where the cottages are located.
Step 8: Continue east on the docks and enter the northeast cottage.
Step 9: Once you’re inside, talk to Looker and he’ll give you the Audinite.
Is Mega Audino Worth Using?
Mega Audino is a decent tank thanks to his excellent typing and high defensive stats. However, Mega Audino’s low Speed makes it very easy to exploit by setup sweepers.
Audino, after Mega Evolution, becomes a Normal/Fairy-type Pokémon. Which is an interesting combination.
Most Mega Evolutions also change the Pokémon’s ability, which lasts until the battle concludes. When Audino Mega Evolves into Mega Audino, it changes its ability to Healer, which has a 30% chance at the end of each turn to cure your ally’s status condition.
Mega Audino’s ability isn’t much better than its default ability.
Healer’s utility is rather limited, since it can only be used in Double Battles. And the 30% chance of curing an ally’s status condition may be too inconsistent to even be worth relying on.
So it’s hard to say Mega Audino is really worth it compared to the dozens of other Mega Evolutions available to you in Omega Ruby/Alpha Sapphire.
How To Build Mega Audino
Because of Mega Audino’s lackluster offensive stats, you’re usually forced to rely on Toxic to deal damage. Mega Audino has access to useful recovery moves such as Heal Bell and Wish, so this is not necessarily a bad thing.
But if you don’t want to use Toxic, Mega Audino can also set up with Calm Mind and deal damage with a powerful Fairy-type move like Dazzling Gleam.
Wish is also useful in this moveset, because Calm Mind makes you bulkier against Special attackers.