• English / United States: Cilan's Crustle
• Japanese / Japan: デントのイワパレス
• Japanese (Romanized) / Japan: Dent no Iwapalace
• Japanese (TL) / Japan: Dent's Iwapalace

Cilan's Crustle　was revealed in A Seven-colored Arch (七色アーチ), the 5th overall Japanese ending for Best Wishes which first aired at the end of BW63. Cilan's Dwebble evolved into Cilan's Crustle during a conflict with Rocket Gang at the Electric Stone Cave in BW64.

Tag Battle VS Bianca and Professor Juniper

After Bianca's Shelmet and Professor Juniper's Karrablast evolved via link trade, Professor Juniper suggested to Bianca that they team up and have a tag battle against Ash Ketchum and Cilan. Ash's Boldore and Cilan's Crustle had recently evolved so they decided to use them against Bianca's Escavalier and Professor Juniper's Accelgor. The beginning of the battle went well for Bianca and Professor Juniper as Bianca's Escavalier's Fury Attack was excellent but Bianca hadn't commanded it to use it. Realizing that Bianca's Escavalier wasn't following commands, Ash Ketchum and Cilan decided to focus their attacks on it. Professor Juniper's Accelgor managed to protect Bianca's Escavalier as Professor Juniper explained that tag battles were all about teamwork. Professor Juniper's Accelgor lost a lot of stamina defending Bianca's Escavalier after it used Substitute and Bianca's Escavalier finally realized that it needed to listen to Bianca otherwise it would loose the battle. After Professor Juniper's Accelgor did a quick Recover, Professor Juniper's Accelgor and Bianca's Escavalier started working together and they combined their Hyper Beam attacks which knocked out Ash's Boldore. Cilan's Crustle fought back with its powerful Rock Wrecker to knock out both Bianca's Escavalier and Professor Juniper's Accelgor and give Ash Ketchum and Cilan the tag battle win.

Battle against Skyla

Skyla's Swanna was matched up against Cilan's Crustle in Skyla's air battle and she believed that her Swanna would be victorious. In the actual gym battle, Cilan's Pansage was replaced by Cilan's Crustle after it was knocked out and Skyla's Swoobat was one hit knocked out by Cilan's Crustle's Rock Wrecker. Skyla's Swoobat was then replaced by Skyla's Unfezant. It didn't fare too well against Cilan's Crustle as Rock Wrecker hit its mark once again. Skyla's Unfezant's Air Slash then proved to be ineffective against Cilan's Crustle rock. Skyla's Unfezant was then knocked out by a combination of Cilan's Crustle's Shell Smash and X-Scissor to give Cilan the lead in the battle.

Skyla's Unfezant was then replaced by Skyla's Swanna and the match-up from Skyla's air battle would actually take place. Despite Skyla believing that she could defeat Cilan's Crustle by using BubbleBeam in her air battle, it didn't prove too effective in the actual battle as Cilan's Crustle tried to protect itself by hiding in its rock shell. Cilan's Crustle then went on the offensive and jumped out of its shell to do another Shell Smash/X-Scissor combo, but Skyla saw it coming this time and Skyla's Swanna countered it with a Brave Bird and knocked it out.

Battle against Ricard Nouveau's Purrloin

Mr. Hatterly suggested the two have a Pokémon battle to determine which A-class Pokémon Sommelier would get to choose the Pokémon for Marigold. The battle was a 1-on-1 affair and Ricard Nouveau's Purrloin was sent out to face Cilan's Crustle.

Ricard Nouveau said his Choroneko's speed and power even surpasses its evolved form Lepardas. It showed its speed early on in the battle and Cilan's Crustle had a hard time hitting it. During the battle, Ricard Nouveau noted that Cilan's Crustle was a good choice for Cilan in that it's faithful to the basics but that alone was nothing but an ordinary and boring tasting. He expanded by saying that selecting Iwapalace, who is both a Rock and a Bug type, against Choroneko, a Dark type, is a standard reaction. He suggested to Cilan that an A-class Sommelier needed to have more unpredictability which Cilan's Crustle showed by coming out of its shell and using Rock Wrecker to defeat Ricard Nouveau's Purrloin. Ricard Nouveau admitted that Cilan's Crustle hid an unexpected flavor.