I've been wondering... you know how Mold Breaker does NOT break Shadow Shield/Prism Armor/Full Metal Body? What about Turboblaze/Teravolt. The 3 aforementioned abilities are learned by Legendary Pokémon (Lunala, Necrozma, Solgaleo, respectively). The things they clone are learned by NON-Legendaries (Filter on Aggron, Clear Body on Metagross, etc.), so I figured that since Teravolt and Turboblaze are learned by Legendaries (Kyurem White/Black and Reshiram/Zekrom), they might be "one-ups" of Mold Breaker. This has been impossible to test until now since until Gen 7, no moves have been immune to Mold Breaker. It would be interesting to see if they did, and it could breath new life into Kyurem-Formes and Reshiram/Zekrom.