This process works almost the exact same way as Necrozma’s fusions ... it’ll be greyed out to indicate that it’s busy being fused (of course). In addition to just being some of the strongest ...

Fan artist reimagines Necrozma as "Burning Light" in Past Paradox form, exclusive to Pokemon Scarlet with Fire and Psychic ...

As per the datamined information, Pokemon GO’s fusions seem to include every fused Pokemon from the main series games, specifically Necrozma’s Dusk Mane and Dawn Wings, Calyrex’s Shadow ...