>>38527184You need to use the ultra warp ride mini game to get to ultra necrozma. On the way, you could possibly enter portals with legendaries or level 60 pokemon not in the regional pokedex. Ultra Necrozma gets an aura that gives it a +1 to all stats, and it's about 10 levels above the normal curve. It might be a viable strategy to catch legendaries/ other pokemon in the portals due to how strong it is. Most people didn't, but it might be helpful for a kid or something.