Last updated: 4 July 2026

Pokémon Legends: Z-A All Legendary Pokémon How to Catch Xerneas, Yveltal, Zygarde & Mewtwo

Pokémon Legends: Z-A features four legendary Pokémon, all of which become available only after you finish the main story in Lumiose City. Xerneas and Yveltal are unlocked through a pair of parallel post-game main quests, Zygarde waits in a brutal three-phase gauntlet at Wild Zone 20, and Mewtwo is accessible through the Project M side mission tied to a Mystery Gift. This guide covers every step for all four, with recommended team levels and type counters for each encounter.

01Post-Game Unlock Condition

None of the four legendary Pokémon are available during the main story of Pokémon Legends: Z-A. The post-game begins after you complete the final main mission involving Quasartico Inc. and return to Hotel Z, where you encounter Trainer L. Progressing through Trainer L's post-game sequence is the prerequisite that opens up all legendary encounters.

Once Trainer L's storyline is underway, two parallel post-game main quests unlock on your mission board: 'The One That Gives' (Xerneas) and 'The One That Takes' (Yveltal). You can pursue these in either order, but both must be completed before Wild Zone 20 — and Zygarde — become accessible.

Mewtwo stands apart: it does not appear through any in-story quest. Catching it requires claiming a specific Mystery Gift (Project M) first. See the Mewtwo section for full details.

02Xerneas — Wild Zone 11 (Fairy, Level 75)

Xerneas is the first legendary most players encounter in the post-game. It is a pure Fairy type at level 75 and is weak to Poison and Steel. Bringing a strong Pokémon of either type is the most reliable way to lower its HP for the catch attempt.

Step 1: Accept quest 'The One That Gives'. After meeting Trainer L at Hotel Z, this quest appears on your mission board. Accept it to begin the Xerneas chain.

Step 2: Catch or defeat three Alpha Pokémon. The quest directs you to three designated Alpha Pokémon that appear in Wild Zones 3, 5, and 9. These are quest-specific Alpha encounters, not the standard Alpha Pokémon already roaming those zones. Complete all three in any order.

Step 3: Report back to Mable. After clearing the three Alpha encounters, speak with Mable. She reports detecting unusual energy concentrated in Wild Zone 11.

Step 4: Find Xerneas at Wild Zone 11 (northern canal bank). Travel to Wild Zone 11. Look for a glowing marker on the far side of the water channel. Approach it to trigger the Xerneas encounter. Xerneas spawns at level 75 and enters a standard real-time battle.

Tips for catching Xerneas:

• Inflict sleep or paralysis first. Lowering Xerneas to the red HP zone while it is asleep or paralyzed dramatically improves your catch rate. Spore (Breloom) or Thunder Wave are reliable delivery methods.
• Bring 25+ Ultra Balls. Legendary catch rates are low. Stock more than you think you need before heading to Wild Zone 11.
• Counter with Poison or Steel. Toxicroak, Roserade, Steelix, Metagross, or any Pokémon with strong Poison/Steel moves deal super-effective damage. One or two hits to red HP before initiating the catch sequence is the goal.
• Xerneas auto-resets if fainted. If you accidentally KO Xerneas, the encounter resets automatically — do not reload a save. The mission cannot advance until you successfully catch it, so you can retry as many times as needed.

03Yveltal — Galerie de la Lune Rooftop (Dark/Flying, Level 75)

Yveltal is a Dark/Flying type at level 75. Its weaknesses are Electric, Ice, Rock, and Fairy. It is immune to Ground moves (Flying) and to Psychic moves (Dark), so avoid both of those entirely. The encounter takes place on the rooftop of the Galerie de la Lune building — one of the more dramatic settings in the post-game.

Step 1: Accept quest 'The One That Takes'. This quest appears on your board at the same time as the Xerneas quest. You can pursue it in parallel — you do not need to catch Xerneas first.

Step 2: Speak with Griselle and Grisham at Centrico Plaza. Find the pair near the plaza. They are former Team Flare members familiar with both Xerneas and Yveltal from the events of Pokémon X and Y, and they agree to help you track Yveltal down.

Step 3: Clear the Quasartico Inc. simulation. Griselle and Grisham bring you to the Quasartico Inc. building, where you must defeat three consecutive Rogue Mega Pokémon in a training simulation: Rogue Mega Victreebel, Rogue Mega Hawlucha, and Rogue Mega Tyranitar. Heal your team between rounds where possible — this is a gauntlet.

Step 4: Confront Yveltal at Galerie de la Lune. After the simulation, Yveltal appears on the rooftop of Galerie de la Lune. Travel there and approach to trigger the battle. Yveltal appears at level 75.

Tips for catching Yveltal:

• Bring Electric or Fairy counters. Jolteon, Luxray, Magnezone, Togekiss, or Clefable are all effective. Ice-type Pokémon (Mamoswine, Cloyster) also deal super-effective damage.
• Skip Ground and Psychic moves. Flying-type immunity to Ground and Dark-type immunity to Psychic leave both completely wasted against Yveltal.
• Use your Mega Evolution early. Yveltal hits hard at level 75. Triggering your own Mega Evolution by collecting orbs before committing to an attack pattern gives you the offensive edge needed to drop its HP safely.
• Catch rules are the same as Xerneas. Status condition + red HP + Ultra Balls. Don't skip the status step. Like Xerneas, Yveltal auto-resets if fainted — the encounter restarts automatically, so you cannot permanently miss it.

04Zygarde — Wild Zone 20, Three-Phase Gauntlet (Dragon/Ground, Level 84)

Zygarde is the hardest legendary encounter in the base game. It is a Dragon/Ground type at level 84 and fights across three consecutive phases without healing between them. Wild Zone 20 is located directly beneath the ruins of Prism Tower in Centrico Plaza and becomes accessible only after you have completed both the Xerneas and Yveltal quests and defeated Trainer L in their final challenge.

Recommended team level: 85–90. Going in at level 80 is possible but leaves very little margin if you take hits during Complete Forme's wide-area attacks.

Phase 1 — Zygarde 10% Forme (Dog Forme). Zygarde enters at level 84 in its small Dog Forme. This phase is relatively quick but deceptively fast — 10% Forme prioritizes speed and can chain attacks before you reset your positioning. Focus on building your Mega Gauge via orbs before committing to heavy offensive pressure.

Phase 2 — Zygarde 50% Forme (Serpent Forme). After depleting 10% Forme's HP, Zygarde transforms into its much larger serpent form without recovering HP. HP pool increases significantly and it gains Ground-type sweeping attacks that cover wide arcs of the arena. Maintain constant movement; standing still for more than two seconds is risky.

Phase 3 — Zygarde Complete Forme. The final and most dangerous phase. Complete Forme is enormous and uses a signature move called Land's Wrath that blankets most of the arena. In the first 30 seconds, prioritize learning the attack timing over dealing damage — dodge Land's Wrath consistently before extending offensive combos. Once you have the rhythm, Complete Forme falls quickly with super-effective Ice moves.

After depleting Complete Forme's HP, Zygarde reverts to 50% Forme and the catch phase begins. Zygarde is a guaranteed capture — any Poké Ball will work and it cannot break free, so there is no need to worry about catch rate or Ball selection here.

Type and team tips:

• Ice is 4× effective. Zygarde is Dragon/Ground — Ice is resisted by neither type and hits both for super-effective damage. Mamoswine, Cloyster, Glaceon, or any Pokémon with strong Ice moves is your primary counter.
• Dragon is also effective but risky. Dragon-type moves hit Dragon super-effectively, but Zygarde will hit back just as hard with Dragon moves of its own. Ice is the safer choice.
• Avoid Electric and Fire. Ground-type Zygarde is immune to Electric. Dragon resists Fire. Both are wasted move slots.
• Level 85–90 is not optional for casual players. If your team sits at 80, train in Wild Zones 16–18 first — both have dense trainer activity and powerful wild Pokémon that give strong experience.
• Save at the Wild Zone 20 entrance. A manual save before entering gives you a clean restart point if your team wipes during Complete Forme.
• Heal during transformation cutscenes. The game briefly pauses player input during form-change animations. Use a Max Potion or Revive in that window — it is tight but reliable.

05Mewtwo — Project M Mystery Gift Side Mission (Psychic, Level 70)

Mewtwo is an optional fourth legendary available through the Project M side mission. It does not appear through any standard post-game story quest — you must first claim a specific Mystery Gift to unlock the mission.

How to start Project M:

1. Press X to open the menu, then select Link Play.
2. Select Mystery Gift, then choose Get via Internet.
3. Claim the Project M gift. You receive Mewtwonite X and Mewtwonite Y directly in your bag, and the Project M side mission is added to your board.
4. Accept the Project M mission from your board. Fast-travel to Lysandre Cafe (near Wild Zone 7), enter Lysandre Labs, and take the red elevator to Floor B3F. When you enter with both Mega Stones in your satchel, the locks disengage and Mewtwo appears.

Mewtwo appears at level 70 as a pure Psychic type. Its weaknesses are Dark, Ghost, and Bug. Dark-type Pokémon are the strongest counter here because they are immune to Psychic moves entirely — Mewtwo's main offensive type deals zero damage to Dark types. Umbreon, Weavile, Greninja (with Dark moves), and Tyranitar are all reliable options.

The two Mega Stones you receive from the Mystery Gift — Mewtwonite X and Mewtwonite Y — allow Mewtwo to Mega Evolve into two distinct forms after you catch it. Mega Mewtwo X is Psychic/Fighting; Mega Mewtwo Y is pure Psychic with massively boosted Special Attack. You keep both stones and choose which form to trigger in future battles.

Note on Mystery Gift availability: The Project M gift was originally distributed starting December 2025 via 'Get via Internet' (X → Link Play → Mystery Gift → Get via Internet). Mystery Gift events vary in duration — some run for months, others indefinitely. As of the time of writing, check Serebii.net or the official Pokémon website to confirm whether the internet distribution is currently active. If the internet event has ended, look for any active serial codes distributed by Nintendo or The Pokémon Company at promotional events.

06General Catch Tips and Recommended Preparation

Before pursuing any legendary, make sure your team and inventory are ready. Legendaries have low base catch rates and cannot always be reattempted easily.

• Team level 80+ before Xerneas and Yveltal (both level 75). A small level advantage gives you better damage control during the catch phase — you want to chip, not knock out.
• Team level 85–90 before Zygarde (level 84, three phases). This is the biggest difficulty spike. Do not skip preparation.
• Stock 30+ Ultra Balls for Xerneas, Yveltal, and Mewtwo. Catch rates on these three legendaries are notoriously low. Zygarde is a guaranteed capture so Ball selection doesn't matter there, but going into the other three with fewer than 20 Ultra Balls is a common mistake that forces early retreats.
• Prioritize sleep over other status conditions. Sleep provides a higher catch rate multiplier than Paralysis and does not tick down HP like Burn or Poison. Spore (Breloom), Sleep Powder, and Darkrai's Dark Void are the most reliable delivery methods available at this stage.
• Type coverage at a glance — Xerneas: Poison, Steel. Yveltal: Electric, Ice, Rock, Fairy. Zygarde: Ice (4×), Dragon. Mewtwo: Dark, Ghost, Bug.
• Cross-check official patch notes before each encounter. Pokémon Legends: Z-A receives game updates that can adjust wild Pokémon levels and encounter conditions. Always verify current data at the official Pokémon site or Serebii.net for your installed version.