|This page may contain spoilers!|
The Calcite Chamber is a room hidden in a pillar near the strange rock formation on Route 6. In order to gain access, the player must complete the puzzles in Frostveil Catacombs. The Legendary Pokémon Regirock waits for the player inside.
After completing the puzzles in Frostveil Catacombs, a violent earthquake occurs and a message indicates that certain chambers have opened, which includes the Calcite Chamber. When entering this rocky chamber, the player has to descend a rugged staircase, and Regirock is seen deep inside. Proceed and click on it to start the battle. Players only have one chance to catch it, so save beforehand and turn off the Auto Save function. As Regirock is very difficult to catch and appears in a cave, it is recommended to purchase a lot of Dusk Balls in Poké Ball Emporium, Anthian City - Shopping District before actually proceeding to fight Regirock.
Warning: Players can only battle the following Pokémon once! Save beforehand and turn off Autosave.
| Requires finishing the puzzles in Frostveil Catacombs|
Recommended Poké Balls: 1 Quick Ball + Dusk Balls
|Regirock||Lv. 40||One Only||3 Def||None|
|If attempts of catching the above Pokémon failed, immediately leave the game and rejoin without saving, in order to secure a second chance.
Click on the Pokémon names to check their learnsets on Bulbapedia. All Pokémon above follow their movesets in Pokémon Sun and Moon. Hover on the item sprites to check the exact chance of being held by the Set Encounter Pokémon.
- The name "Calcite Chamber" refers to the Calcite rock, which is known to make cement.