Ok, I managed to beat Champion Leon (cleared the main story) and nearly done going through the two DLC areas. I got all the Galarian Birds + All Regi Pokémons + Calyrex (w/ Glastrier). I might be almost done with Isle of Armor and Crown Tundra. I'm managed to encountered the Weirdo Descendants that got the Sword, but I got the Shield back and I was going through to unlock Zamazenta for appearing in the Energy Plant.
1. How do I get Hop to appear in Isle of Armor and battle Mustard for the Lv. 75 Battle? (I think the location notes mention about Dynamax in Isle of Armor)
2. How do I get Sophia to appear in Crown Tundra to trigger the Unova Legendaries to appear?
3. I did manage to encounter an Original Articuno in Dynamax Adventures but got blown away by dark gust (I was so close). Do I go back to Dynamax Adventures and the Original Articuno will appear back where I left off?
4. How do I get straight to the Ultra Beasts in Dynamax Adventures so that I can get Poipole as an reward? (I did capture a Guzzlord in a regular Pokéball)
5. How I go through Necrozma in Dynamax Adventures?
Sounds like you’re referring to the GTS. You can find it in the Pokémon HOME app. You’ll have to download it on your Nintendo Switch and on your mobile device, plus you’ll need a Nintendo online membership.
Yeah, I do actually meant by GTS. (I haven't played any Pokémon games in a while since Pokémon Sun was launched before I got Pokémon Shield and Shiny Pearl through GameStop as used copies.)