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Martensite Chamber is a blocked mineshaft behind the Tree of Fire in the Grove of Dreams. In order to gain access, the player must complete the puzzles in Frostveil Catacombs. The Legendary Pokémon Registeel waits for the player inside.

Notable Event

Catching Registeel

Upon completing the puzzles in Frostveil Catacombs, a violent earthquake occurs and a message states that certain chambers are opened. This is one of the three Chambers which are opened after solving the puzzles. After entering this modern-styled chamber, proceed through the narrow passage and Registeel can be seen in the inner room. Click on it to start the battle. Players only have 1 chance to catch it, so save beforehand and turn off the Auto Save function. Since Registeel is very difficult to catch and appears in a cave, it is strongly recommended to purchase plenty of Dusk Balls in Poké Ball Emporium, Anthian City - Shopping District before actually proceeding to fight Registeel.

Pokémon

Warning: Players can only battle the following Pokémon once! Save beforehand and turn off Autosave.

Pokémon Type Level Image Rarity EV Yield Item
Legendary Pokémon
Requires finishing the puzzles in Frostveil Catacombs
Recommended Poké Balls: Quick Ball 1 Quick Ball + Dusk Ball Dusk Balls
RegisteelSteelLv. 40
Registeel XY
One Only2 Def
1 Sp. 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 have been updated to 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.

Trivia

  • The name "Martensite Chamber" refers to Martensite — a hard, steel crystalline structure.


Roria
Roria
Towns Mitis TownCheshma TownLagoona Lake (Trenches) • Port Decca
Cities Silvent CityBrimber CityRosecove City (Beach) • Anthian City (Housing Dist.Shopping Dist.Battle Dist.ParkSewer) • Aredia City (Old ArediaAredia Ruins) • Fluoruma CityFrostveil City (Catacombs)
Routes 12345678910111213141516
Caves &
Mountains
Glistening GrottoSteam ChamberMt. Igneus (Igneus Depths) • Path of TruthSilver CoveMt. Cragonos (MinesCliffsPeakSanctuarySpringChamber of the Jewel) • Desert CatacombsNature's DenCalcite ChamberMartensite ChamberDendrite ChamberTitans' ThrongFreezing Fissure
Islands Lost Islands (Deep Jungle)
Other
Locations
Gale ForestOld GraveyardSecret GroveGrove of DreamsFortulose ManorCosmeos Valley (Observatory) • Tinbell Tower (Construction Site) • Secret Lab