In Pokémon Sun and Moon , Lusamine protects herself with a Nihilego .
When she is encountered , Lusamine -in an act of defense- allows a Nihilego she caught to take over her , turning the rogue Aether President into a terrifying hybrid monster , the `` Mother Beast '' , before sending out her Pokémon -their power increased as a result of her transformation- to attack the player in attempt to seek vengeance for her daughter 's defiance .
Pokémon Sun and Moon