This Pokemon Legends Z-A walkthrough will walk you through the “A Rogue Mega Altaria” main story mission in the game.

Pokemon Legends Z-A’s “A Rogue Mega Altaria” is the game’s 28th main story mission. At this point in the story, the Rogue Mega Pokemon are becoming a big issue in the city, and Lida wants you to deal with a bunch of them. Rogue Mega Altaria, along with Rogue Mega Venusaur and Rogue Mega Froslass, are the Pokemon she wants you to handle.
Rogue Mega Altaria is no joke, making for a difficult opponent with its unpredictable moveset and hard-hitting attacks. If this fight is giving you any trouble, our guide is here to help. In this guide, we’ll walk you through the “A Rogue Mega Altaria” quest in Pokemon Legends Z-A.
Read: Pokemon Legends Z-A: A Rogue Mega Dragonite Walkthrough
Pokemon Legends Z-A: A Rogue Mega Altaria Mission Guide
Starting Location

You begin your hunt for the Rogue Mega Altaria at Hotel Z, where Lida wants to hold a strategy meeting. Attend this meeting and she’ll inform you of a Rogue Mega Altaria in Magenta Sector 4.
You can get to this area by fast-traveling to Magenta Plaza and then circling to the right of the spawn point.Look to your right and you’ll see a building with a Holovator. Head to the roof of this building, and it will lead you to Altaria.
Related: Pokemon Legends Z-A: A Rogue Mega Venusaur Walkthrough
Rogue Mega Altaria Boss Fight

Rogue Mega Altaria is weak to the following:
- Fairy
- Ice
- Poison
- Steel
To capitalize on the boss’s weaknesses, we’ll be using the following Pokemon:
- Excadrill
- Frosslass
- Gardevoir
- Gengar
- Mawile
Once the fight begins, you have to watch out for the following attacks:
- Dragon Pulse: The boss let out a scream that shoots a beam. This beam is slow with a long charge-up time, so you have plenty of time to sidestep it.
- Moonblast: Altaria will take to the air and launch an orb right at you. This orb is incredibly slow but hits very hard. Move out of the way to avoid this.
- Whirlwind: The boss will take to the air once again, but this time will summon several mini tornadoes. These tornadoes are very fast, so you’ll have to dash around the edge of the arena to avoid them.
- Brave Bird: Altaria will charge right across the diameter of the arena. This is by far its fastest attack, but it only deals damage across a thin line. Avoid this line to stay safe.
Rogue Mega Altaria Mission Reward
After defeating Rogue Mega Altaria and completing Main Mission 28, you will receive Altarianite Mega Stone. Altaria can evolve into Mega Altaria while holding the Altarianite Mega Stone. Have Altaria hold Altarianite to unlock its Mega Evolution.

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