A black or white abbreviation in a colored box indicates that Necrozma can be tutored the move in that game
A colored abbreviation in a white box indicates that Necrozma cannot be tutored the move in that game
Bold indicates a move that gets STAB when used by Necrozma
Italic indicates a move that gets STAB only when used by an evolution or alternate form of Necrozma
When Necrozma is fused, it tries to learn a new move in the same way that other Pokémon may learn new moves upon evolving. If Necrozma changes to its normal form, it immediately forgets the special move of the form it was in (if it still knows it); if the only move that Necrozma knows is the form's special move, then that move will be replaced with Confusion.