How do the mechanics of fusing Necrozma work - Generation 7 - Project Pokemon Forums

For example: Let's say I have a Jolly 31/31/31/0/31/31 Necrozma, and an Adamant 1/12/31/31/31/21 Solgaeo. Does it use Necrozma's spread or is there some other formula? Thank you for any help.

usum] Pokemon Ultra Sun and Ultra Moon Announced! - Generation 7 - Project Pokemon Forums

Generation VII - Bulbapedia, the community-driven Pokémon encyclopedia

PK7: Unobtainable Ultra Necrozma - Unreleased/Beta PKM Gallery - Project Pokemon Forums

Pokemon 800 Necrozma Pokedex: Evolution, Moves, Location, Stats

Resource - Pet Mods Submission Thread, Page 4

I just got my shiny Necrozma, I decided to fuse it with a solgaleo for an endless torture! : r/PokemonSwordAndShield

Script: - ZUD Plugin [v20.1]

Pokémon Bank - Bulbapedia, the community-driven Pokémon encyclopedia

Cosmog (Pokémon) - Bulbapedia, the community-driven Pokémon encyclopedia

Pokemon 8800 Mega Necrozma Pokedex: Evolution, Moves, Location, Stats

Necrozma, Character Profile Wikia

Haunter (Pokémon) - Bulbapedia, the community-driven Pokémon encyclopedia

Literature Fanfiction on Sonic-Pokemon-FC - DeviantArt

Pokemon 12047 Zekalyena Pokedex: Evolution, Moves, Location, Stats

Pokemon 10791 Shiny Mega Solgaleo Pokedex: Evolution, Moves, Location, Stats