Altarianite (Mega Stone)
Location Given as a reward for defeating Successor Maxima in the Tarmigan Mansion.
Mega Evolution Altaria

Prerequisites

  • Have access to Tarmigan Town

Location

Go down the stairs south of the Tarmigan Town Pokémon Center and follow the path east.

Going east from the Tarmigan Town Pokémon Center. / Pokémon Unbound
Going east from the Tarmigan Town Pokémon Center.

Enter the Tarmigan Mansion at the end of the path.

Entering the Tarmigan Mansion. / Pokémon Unbound
Entering the Tarmigan Mansion.

Head north after entering the mansion.

Going north after entering the mansion. / Pokémon Unbound
Going north after entering the mansion.

Climb the stairs in the northeast corner of the mansion’s ground floor.

Taking the stairs going up. / Pokémon Unbound
Taking the stairs going up.

Continue on the path and climb the stairs at the end.

Going further upstairs. / Pokémon Unbound
Going further upstairs.

Take the south stairs to go to a lower section of the mansion.

Taking the south stairs going down. / Pokémon Unbound
Taking the south stairs going down.

Go east and take the stairs to go to a lower floor.

Going further downstairs. / Pokémon Unbound
Going further downstairs.

Here, you’ll see a silver statue.

Interact with it and press the hidden button before backtracking upstairs.

Pressing the hidden switch on the statue. / Pokémon Unbound
Pressing the hidden switch on the statue.

Take the newly-opened path south after going up both sets of stairs.

Backtracking and taking the new path south. / Pokémon Unbound
Backtracking and taking the new path south.

You’ll eventually reach a maze-like area.

Take the first turn east and then take the next path north when you can.

Going east and then north after entering the maze. / Pokémon Unbound
Going east and then north after entering the maze.

Follow the path and go west when the path splits into two. When you reach the stairs take them to go downstairs.

Following the path to reach the stairs. / Pokémon Unbound
Following the path to reach the stairs.

Once down the stairs, go directly south and fall off the end of the path.

Falling from the path’s edge. / Pokémon Unbound
Falling from the path’s edge.

You’ll fall into Successor Maxima’s room. Speak with her to initiate a battle.

About to challenge Successor Maxima. / Pokémon Unbound
About to challenge Successor Maxima.

Defeating Successor Maxima will get you the Altarianite mega stone.

Successor Maxima
Pokémon Wigglytuff (Level 39) Delphox (Level 39) Empoleon (Level 40) Alolan Ninetales (Level 40) Mega Altaria (Level 41)
Type Normal/Fairy Fire/Psychic Water/Steel Ice/Fairy Dragon/Fairy
Ability Huge Power Blaze Defiant Snow Cloak Natural Cure – Pixilate
Held Item Altarianite
Weaknesses
  • Poison (2x)
  • Steel (2x)
  • Ground (2x)
  • Rock (2x)
  • Ghost (2x)
  • Water (2x)
  • Dark (2x)
  • Fighting (2x)
  • Ground (2x)
  • Electric (2x)
  • Poison (2x)
  • Rock (2x)
  • Steel (4x)
  • Fire (2x)
  • Poison (2x)
  • Steel (2x)
  • Ice (2x)
  • Fairy (2x)
Moves
  • Fire Punch
  • Ice Punch
  • Thunder Punch
  • Wake-Up Slap
  • Mystical Fire
  • Psyshock
  • Shadow Ball
  • Dazzling Gleam
  • Aqua Jet
  • Bulldoze
  • Aerial Ace
  • Swords Dance
  • Ice Beam
  • Dazzling Gleam
  • Dark Pulse
  • Nasty Plot
  • Dragon Claw
  • Body Slam
  • Flamethrower
  • Dragon Dance
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