Mega Stones represent one of the most powerful battle mechanics in Roria Unbound. Unlike standard evolutionary stones that permanently evolve a creature into its next evolutionary stage, Mega Stones grant a temporary, in-battle transformation for eligible fully evolved companions.
To harness this power, you must reach specific points in the story, secure the Mega Keystone, and purchase or earn the species-specific stone required for your companion.
Where to Find Mega Stones in Roria Unbound
In the main campaign of Roria Unbound, the primary destination for acquiring Mega Stones is the Stone Shop in Anthian City.
The Anthian City Stone Shop
Anthian City is the floating capital of the Roria region, accessible via airship from Cragonos Peak. The metropolis is split into four distinct sections: the Housing District, the Shopping District, the Battle District, and Anthian Park.
The Stone Shop is situated in the Shopping District, right at the center hub of the city. Inside, the vendor stocks a variety of items:
- Elemental type-boosting Gems
- Standard Evolutionary Stones (such as Fire Stones, Sun Stones, and Leaf Stones)
- Species-specific Mega Stones (including Alakazite, Mewtwonite Y, and others)
Prerequisites to Purchase Mega Stones
While the Stone Shop displays Mega Stones on its counters, you cannot immediately purchase and use them the moment you step foot off the airship. Gameplay playthroughs highlight two critical hurdles:
- Story Progression: You must advance through the Anthian City storyline. Early visits will prevent transactions until specific plot points with Team Eclipse are settled.
- The Mega Keystone: You must acquire the Mega Keystone before you can trigger Mega Evolutions. During the story events in Anthian City, defeating Team Eclipse rewards you with the Mega Keystone along with a cash reward (such as 100,000 Poké dollars).
- Currency Requirements: Mega Stones are premium items. Players attempting to purchase stones like Alakazite before clearing the Anthian storyline have observed needing substantial funds—often ranging well over 100,000 to 250,000 Poké dollars depending on the stone.
Secondary and Third-Party Reported Sources
Outside of the fixed Anthian City vendor, third-party community guides note that certain Mega Stones and evolution shards may also appear across high-level content:
- Boss Replay Encounters: Repeatable late-game boss challenges reported to drop evolutionary shards and evolution materials.
- Event Exchange Shops: Periodic limited-time shops that trade event currencies (such as banked Gems or Tickets) directly for guaranteed stones.
- Milestone Rewards: Select achievement chains and major patch compensation distributions.
How to Use Mega Stones in Battle
Once you have purchased your chosen Mega Stone and obtained the Mega Keystone, activating the transformation requires simple setup:
- Equip the Stone: Open your party menu and give the Mega Stone to the corresponding fully evolved companion as a held item (for example, give Alakazite to Alakazam). This takes up the companion's held item slot.
- Enter Battle: Initiate a wild battle or trainer encounter.
- Select Mega Evolution: When choosing an attack, select the Mega Evolution option before confirming your move.
- Trigger the Transformation: Your companion will transform into its Mega form at the start of the turn, gaining heightened base stats, altered abilities (such as Trace on Mega Alakazam), and enhanced offensive pressure.
The Mega Evolution lasts for the duration of that battle and automatically reverts once the match concludes.
Key Anthian City Landmarks and Progression
Navigating Anthian City is essential for setting up your team for Mega Evolution. The table below outlines the primary locations tied to this progression route.
| Location / NPC | District | Function & Rewards |
|---|---|---|
| Stone Shop | Shopping District | Sells elemental Gems, standard Evolutionary Stones, and Mega Stones |
| Poké Ball Emporium | Shopping District | Sells specialty and elemental Poké Balls; location of Uncle Gerald |
| Hero's Hoverboards | Shopping District | Provides free Basic Hoverboards and premium Deluxe Hoverboards for travel |
| Anthian Gym (Leader Stephen) | Battle District | Flying-type Gym awarding the Soaring Badge, TM40 (Aerial Ace), and HM Fly permission |
| Anthian Sewer & Park | Sub-level & East | Unlocked via the Basement Key from Gerald to stop Team Eclipse and earn the Keystone |
Frequently Asked Questions
Can you buy Mega Stones before defeating the Anthian City Gym?
While you can browse the inventory at the Stone Shop in the Shopping District before challenging Gym Leader Stephen, you cannot complete the purchase or utilize the stones until you clear the accompanying Team Eclipse storyline events and obtain the Mega Keystone.
Do Mega Stones permanently change your companion?
No. Unlike standard evolution stones (such as using a Fire Stone on Eevee or a Sun Stone on Gloom), a Mega Stone only activates a temporary transformation during active combat. The companion returns to its standard form as soon as the encounter ends.
How do you get the Mega Keystone in Roria Unbound?
The Mega Keystone is awarded as part of the core narrative progression in Anthian City after successfully confronting and defeating Team Eclipse in the Anthian Park and Sewer storyline.
