Matangi is the new antagonist in the Disney's upcoming 2024 animated feature film Moana 2. She is described as a mysterious new character.
Here is a theory: Matangi is like their Hawaiian version of Baba Yaga.
Here is fact: Baga Yaga
Her name is often understood to mean "Grandmother Witch". A witch or ogre from Slavic tradition, Baba Yaga (Baba Jaga) resides in a magical cottage in the forest and either aids, imprisons, or consumes people, typically youngsters. As the protector of the fountains of the streams of life, she is one of the most well-known characters from Slavic mythology. She is occasionally regarded as a symbol of female strength and autonomy.
So, this new villain for Moana will have to use her wit and smarts to overpower this Matangi. It seemed to me that the other tribes that Moana is searching for have something to do with Matangi, who does something to them.
I would say Matangi is an immortal witch.