Pokémon Legends: Z-A Mega Evolutions — Complete List & How Mega Evolution Works
Quick Answers
Which Pokémon can Mega Evolve in Pokémon Legends Z-A?
Z-A includes the classic Mega Evolutions from X/Y and OR/AS (Mega Mewtwo X/Y, Mega Lucario, Mega Gyarados, Mega Diancie, and more) plus brand-new Z-A Mega forms for starters and other returning Pokémon.
How do you Mega Evolve in Z-A?
You need the Pokémon's Mega Stone (e.g. Lucarionite for Lucario) and the Key Stone item. Mega Evolution is triggered in battle once per battle and lasts until the battle ends.
Are Mega Evolutions permanent in Z-A?
No — Mega Evolution lasts only for the duration of a single battle, then the Pokémon reverts to its base form. You can trigger it again in the next battle.
What Is Mega Evolution?
Mega Evolution is a temporary transformation that boosts a Pokémon's stats, often changes its ability, and sometimes adds a secondary type. It was introduced in Pokémon X and Y and returns as a core mechanic in Pokémon Legends: Z-A, fitting the game's Kalos setting and the Zygarde lore.
How to Mega Evolve in Z-A
- Obtain the Key Stone early in the story — it is given during the main quest in Lumiose City.
- Equip the Pokémon's specific Mega Stone (found across the five districts of Lumiose City).
- Trigger Mega Evolution during battle once per battle.
New Z-A Mega Forms
Z-A introduces Mega forms for the starter lines and several returning Pokémon:
- Mega Meganium (Grass/Fairy) — defensive walls with recovery and screen support.
- Mega Emboar (Fire/Fighting) — high-powered offensive brute.
- Mega Feraligatr (Water/Dark) — strong mixed attacker with a great Mega ability.
- Mega Raichu — the iconic new Z-A form revealed in early trailers.
- Mega Zygarde — forms tied to Zygarde's story role in Z-A.
Returning Mega Evolutions
Classic Megas confirmed in Z-A include Mega Mewtwo X/Y, Mega Lucario, Mega Gyarados, Mega Diancie, Mega Absol, Mega Metagross, and more. Every Mega form is listed on its Pokédex page with its exact stat changes.
Strongest Mega Picks for Z-A
- Mega Mewtwo — 780 base stat total, the highest of all.
- Mega Lucario — Adaptability-boosted close combat, great for the post-game.
- Mega Gyarados — Mold Breaker + Intimidate immunity, excellent sweep potential.
- Mega Diancie — Rock/Fairy with 110/160 offenses.
Check each Pokémon's Pokédex page in the database for its Mega form's stats and typing.
Related Guides
Frequently Asked Questions
Do Mega Stones disappear after use?
No — Mega Stones are held items and are not consumed. You can Mega Evolve every battle.
Can any Pokémon Mega Evolve in Z-A?
Only Pokémon with a Mega Stone and their species' Mega form. Not every Pokémon has one.
Is Mega Evolution available before the post-game?
Yes — Mega Evolution is a main-story mechanic in Z-A, unlike in some earlier games where it was gated behind post-game content.