OmegaStellarSolare

In left side of the upside entrance.

Near the Pokemon Center. Up here.

In Sheridan Village.

I forgot to say. You need to go to Darchlight Woods and speak to Erin.

Talk to Krystal to obtain HM Strength before that.

Eternamax Eternatus reminds me of Ultra Necrozma where I played with that pokemon in Pokemon Ultra Sun. That's the reason it came to my mind.

You can't pass to Grand Dream City for now. Defeat the next gym leader and enter the train in order to continue.

Which cavern are you in?

Staraptor

I'm afraid you can't have it for now. You need to go to Grand Dream City. What are you supposed to do for now?

Mine are Anna, Charlotte, Cal, Julia, Shade, Taka. The reason for : Anna : She's quite mysterious from beginning. Overall, she's very cute and very kind. Plus, Anna is the reason why I choose the right way. Charlotte : Not only she's also cute too, but has a team of Fire type pokemons which is my first favourite type. Cal : Same goes for him only about his team too. I trust him as a friend, no matter what they are to him. Julia : I have my interest in her for a bit. Plus, Electric type is my second favourite. Shade : He might be a bit scary but I respect him, even if he's a ghost, as Shade is also the reason why I choose the right way. Plus, before, Ground type was kind my third favourite due to representing the earth. But, when I played Pokemon Legend of Arena, I witnessed that Ghost type pokemons being illegal to be captured and be participated to battle in plot story. Therefore, Ghost type became my current third favourite type. Taka : At the first time I played, I didn't know about Taka's life. So I considered him as an enemy. But at many playthroughs later, when I decided to team up with Taka in Tourmaline Desert for the sake of Reshiram Route, I got to know Taka much better. Traveling along with Taka was the best moment of entire story.

Ultra Necrozma, one of my favourites legendary pokemons.

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I also chose being a member of Magma Gang. Everyone without exceptions until you see Bennett here.

Yanmega

You must evolve Pichu into Pikachu by having its frienship into max. You must use EV reducing berries in order to gain friendship. That's the fastest way.

Correction. You need to do "Battle Me" sidequest so you can battle Novae and finish it in order to obtain Pichu as a reward when you return to East Gearen Help Plaza.

A-Raichu for long means Alolan Raichu.

Urshifu

You're welcome.

Pass thorugh Beryl Cave and you need rock climb and 16 badges in order to pass the route. After, when you reach the dead end at the cave you must transform Crystal Cave into Dark Crystal Cave by using Dark type move (like Dark Pulse). You must have also the move Rock Smash. After smashing the wall, when you enter, you'll find Larvesta's nest. But you must defeat Volcarona before trying to interact with Larvesta's cocoon. That's all.

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Those artworks of Reborn Elite Four are very great (That includes the artwork of Anna. She looks super adorable).

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