The Mega Dimension DLC for Pokémon Legends: Z-A brings the legendary Hoenn trio—Groudon, Kyogre, and Rayquaza—to Kalos in their most powerful forms. These three titans can be encountered and caught through special Ultra Wormhole missions.
This comprehensive guide will walk you through every step of catching Primal Groudon, Primal Kyogre, and Mega Rayquaza, including the prerequisite quests, special donut recipes you'll need to craft, and battle strategies to help you succeed.
Each legendary requires specific preparation and follows a sequential unlock pattern, so read carefully to ensure you don't miss any crucial steps in your journey to catch all three.
The Hoenn Legendary Trio
Primal Groudon (Continent Pokémon)
The Continent Pokémon appears in its Primal form, boasting Ground/Fire typing with devastating Precipice Blades. Weak to Water (4x), Grass, Ice, and Ground.
Primal Kyogre (Sea Basin Pokémon)
The Sea Basin Pokémon manifests in Primal form with pure Water typing and the powerful Origin Pulse. Weak to Grass and Electric attacks.
Mega Rayquaza (Sky High Pokémon)
The Sky High Pokémon reaches Mega Evolution without needing a Mega Stone, featuring Dragon/Flying typing. Weak to Ice (4x), Dragon, Fairy, and Rock.
These three legendaries are among the most powerful Pokémon ever discovered, and catching all three unlocks special achievements and rewards in the Mega Dimension postgame.
Prerequisites Before You Begin
Essential Requirements
Complete DLC Main Story: You must finish the Mega Dimension main storyline before these legendary encounters become available.
Catch Darkrai: Complete the Ultra Wormhole Investigation File #6 and catch Darkrai as part of the prerequisite questline.
Accumulate 75,000 Investigation Points: Earn Ultra Wormhole Investigation Points by completing ★4+ difficulty Ultra Wormhole missions in Lumiose City.
Accept 'The Best Gift' Quest: This questline at Hotel Z unlocks access to all three legendary encounters once prerequisites are met.
Important: You must catch Groudon and Kyogre before Rayquaza's encounter becomes available. Plan accordingly and ensure you have enough Ultra Balls, Timer Balls, and healing items.
Catching Primal Groudon
Ultra Wormhole Mission 13: Crimson Legend
Step 1: Accept the Quest
After accumulating 75,000 Investigation Points and completing Darkrai's questline, Ultra Wormhole Mission 13 'Crimson Legend' will become available at Hotel Z.
Step 2: Craft Omega Old-Fashioned Donut
Head to Hotel Z's kitchen and craft the Omega Old-Fashioned Donut using the following flavor requirements:
- • Sweet > 260
- • Spicy > 160
- • Sour > 160
- • Fresh > 260
- • Bitter > 20
Step 3: Enter the Ultra Wormhole
Travel to Wild Area 6 (western section). Look for the distinctive red Ultra Wormhole portal. Give the Omega Donut to Hoopa to enter.
Step 4: Battle & Capture
Inside, you'll face Primal Groudon at Level 200. Reduce its HP carefully, inflict status conditions like Sleep or Paralysis, and use Timer Balls for the best catch rate. Primal Groudon has a 4x weakness to Water.
Catching Primal Kyogre
Ultra Wormhole Mission 14: Indigo Legend
Step 1: Accept the Quest
Similar to Groudon, Ultra Wormhole Mission 14 'Indigo Legend' requires 75,000 Investigation Points and Darkrai completion.
Step 2: Craft Alpha Old-Fashioned Donut
At Hotel Z's kitchen, prepare the Alpha Old-Fashioned Donut with these flavor specifications:
- • Sweet > 50
- • Spicy > 50
- • Sour > 210
- • Fresh > 370
- • Bitter > 180
Step 3: Enter the Ultra Wormhole
Navigate to Wild Area 5 and locate the blue Ultra Wormhole portal. Present the Alpha Donut to Hoopa for entry.
Step 4: Battle & Capture
Primal Kyogre awaits at Level 200 inside the wormhole. Use Grass or Electric-type Pokémon to exploit its weaknesses. Status moves and Timer Balls will maximize your success rate.
Catching Mega Rayquaza
Ultra Wormhole Mission 12: The Best Gift
Prerequisite: Catch Both Groudon & Kyogre
Rayquaza's encounter ONLY unlocks after successfully catching both Primal Groudon and Primal Kyogre. Corbeau will then provide the Delta Donut recipe.
Step 1: Receive the Quest Update
After catching both titans, return to Hotel Z. Corbeau will update 'The Best Gift' quest and teach you the Delta Old-Fashioned Donut recipe.
Step 2: Craft Delta Old-Fashioned Donut
The Delta Donut requires the most precise flavor balance and special ingredients including Olivia Oil:
- • Sweet > 120
- • Spicy > 40
- • Sour > 340
- • Fresh > 390
- • Bitter > 40
Step 3: Access the Sky Pillar Portal
Head to the rooftop of Hotel Z. An Emerald-colored Ultra Wormhole will appear. Give Hoopa the Delta Donut to access Hyperspace Sky Pillar.
Step 4: Two-Phase Battle
First, defeat regular Rayquaza (Level 200). Then immediately face Rogue Mega Rayquaza (Level 200). After defeating both forms, you can catch Rayquaza at Level 80. Bring Ice-type moves—Mega Rayquaza has a 4x Ice weakness despite its special ability.
Battle Strategies & Pro Tips
Each legendary presents unique challenges. Here are recommended strategies for maximizing your catch success:
Primal Groudon Counter Strategy
Bring Water-types like Greninja or Primarina for 4x super-effective damage. Watch out for Precipice Blades hitting your whole team. Use Wide Guard if available.
Primal Kyogre Counter Strategy
Grass-types like Chesnaught (with Mega Evolution) or Electric-types such as Mega Zeraora excel here. Origin Pulse hits multiple targets, so spread your team positioning.
Mega Rayquaza Counter Strategy
Despite Delta Stream ability removing Flying weaknesses, Rayquaza retains 4x Ice weakness. Use Meganium, Xerneas, or Ice-type specialists. Fairy moves also deal super-effective damage.
Universal Catching Tips
Always save before entering Ultra Wormholes. Stock at least 50 Timer Balls, 30 Ultra Balls, and Dusk Balls. Status moves like Spore, Thunder Wave, or Hypnosis dramatically improve catch rates. Consider False Swipe users to preserve HP precision.
For more competitive strategies, check our Competitive Team Building Guide or explore Advanced Type Matchups to master these legendaries in battle.
Frequently Asked Questions
What are the prerequisites for catching the Hoenn legendary trio?
You must complete the Mega Dimension DLC main story, catch Darkrai through Ultra Wormhole Investigation File #6, accumulate 75,000 Investigation Points from ★4+ missions, and accept 'The Best Gift' quest at Hotel Z.
Do I need to catch them in a specific order?
Groudon and Kyogre can be caught in either order, but Rayquaza ONLY becomes available after you've successfully caught both Groudon and Kyogre. Make sure to catch both before attempting the Sky Pillar encounter.
What levels are the legendary Pokémon?
Primal Groudon and Primal Kyogre appear at Level 200 during their boss battles. Rayquaza appears at Level 200 for both its regular and Mega forms during the encounter, but you catch it at Level 80 after defeating both forms.
Can these legendaries be shiny?
Yes! All three have shiny variants available. However, they are shiny-locked during the first encounter. To shiny hunt them, you must complete the postgame and unlock repeatable Ultra Wormhole missions.
Where do I find the special berries for the donuts?
All 'Ultra Wormhole' series berries required for these recipes must be harvested from ★4 difficulty or higher Ultra Wormhole missions within the Mega Dimension areas of Lumiose City. They don't grow in the regular overworld.
Final Charged Notes
Catching Primal Groudon, Primal Kyogre, and Mega Rayquaza represents the ultimate challenge in Pokémon Legends: Z-A's Mega Dimension DLC. With proper preparation, the right donut recipes, and strategic battle planning, you'll add these three titans to your team.
Remember to save before each encounter, stock up on catching supplies, and most importantly—have patience. These are among the most powerful Pokémon in existence, and they won't go down without a legendary fight. Good luck, Trainer!