>The black titan destroys all things, returning them to null.
>The 3 siblings were born.
The leaks mention a third sibling too, the "black titan" that destroys all things and returns them to null, apparently he was blessed by Ea and Ia and used that power to break an ancient egg that existed alongside Aus at the beginning of times, and humans and pokemon came from it, but then said titan started killing them, so Ea and Ia selected a champion, gave them the lake trio and with its help the champion killed the titan, which split into the sky, ground, ocean and the three deities of these (the Hoenn trio). It's a variation of another tale where the world and the gods came from the three of life nurtured by the lake trio too, but given the black titan and returning things to null thing (plus calling it "a sibling" I would say that's Giratina
