Mega Diancie surprise quest: how to catch the rare Pokémon now

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• Patch 1.0.2 brings a gifted Diancie and a Mega tease
• Understanding Mega Evolution in Pokémon Legends Z-A
• How to receive the Diancite via Mystery Gift
• Which post-game conditions unlock the new Diancie quest
• What happens during the “Shine Bright Like a Gemstone” mission
• Official confirmation and community reaction
  • Quick tips from the player base

A surprise reward arrived for Pokémon Legends Z-A players after the game’s November 6, 2025 update. What began as a routine patch turned into a pleasant discovery: a free Diancie is now available through a newly added Extra Side Quest. Fans quickly noticed this was also the first time Mega Diancie appears inside the game.

Patch 1.0.2 brings a gifted Diancie and a Mega tease

When patch 1.0.2 rolled out, many players expected only stability and bug fixes. Instead, developers slipped in a short post-update event. Players who completed the new quest can add the Mythical rock/fairy Pokémon Diancie to their roster. The game also lets trainers use a distributed Mega Stone to trigger Diancie’s Mega Evolution.

This giveaway doubles as a preview of the upcoming Mega Dimension DLC, scheduled for release on Dec. 10, 2025. The timing left fans speculating that the free Diancie is part bonus, part promotional showcase for the expansion.

Understanding Mega Evolution in Pokémon Legends Z-A

Mega Evolution is a temporary battlefield transformation some Pokémon can undergo. It changes their appearance and can modify stats or type for the duration of a fight. To Mega Evolve, two items are essential:

• Trainer Key Stone — worn by the Trainer.
• Mega Stone — held by the eligible Pokémon.

When the Key Stone and Mega Stone resonate, the Pokémon gains its Mega form for that encounter. In this update, the Diancite Mega Stone enables Diancie to become Mega Diancie.

How to receive the Diancite via Mystery Gift

Claiming the Mega Stone is handled through the game’s Mystery Gift system. Follow these steps once your game is updated:

1. Open the Nintendo Switch 2 menu and make sure Pokémon Legends Z-A is updated to patch 1.0.2.
2. Press the Y Button in-game to open the Link Play menu.
3. Select Mystery Gift and then choose Get Via Internet.
4. Find and accept the gift named “Shine Bright Like a Gemstone”.

The item granted by this Mystery Gift is the Diancite, which enables Diancie’s Mega Evolution once you have the Pokémon itself.

Which post-game conditions unlock the new Diancie quest

The free Mega Stone alone does not let you add Diancie to your team. The Mythical Pokémon is tied to a late-game Extra Side Quest. You must meet these requirements first:

• Complete the main campaign up through Main Quest #37: Operation Protect Lumiose.
• Visit the Looker Bureau after the credits sequence.
• Speak with Emma and interact with her Espurr to trigger the new mission.

Completing those steps starts the quest line that leads directly to the Diancie encounter.

What happens during the “Shine Bright Like a Gemstone” mission

Once the quest begins, a short cutscene sets the scene. Trainers will then pursue a character named Mimi across the map. The chase culminates in an encounter with Diancie. The capture follows familiar Pokémon mechanics:

• Weaken Diancie in battle without letting it faint.
• Use status effects or lower HP to increase catch chances.
• If Diancie runs or faints, you can retry without lasting penalties.

After catching Diancie, equip the Diancite and ensure your Trainer has a Key Stone to Mega Evolve during battles.

Official confirmation and community reaction

The Pokémon Company confirmed the free Diancie and the Diancite distribution on its social channels when the patch launched. Players praised the unexpected bonus and discussed strategies for capturing and Mega Evolving Diancie. Some viewed the event as a clever way to showcase Mega Dimension DLC content ahead of its December release.

Quick tips from the player base

• Save before the Diancie battle to allow easy retries.
• Bring a Pokémon that can inflict Sleep or Paralysis.
• Have strong False Swipe or status-reducing moves ready.