Just one word, Awesome.
This episode had everything that I expected!
It starts with the gang gtting to know that Fubuki was with Shu and they all go to visit him. He seems to be a little mature than before. Then, he has a flashback of him and Shu, Shu telling him about launch techniques.
Then, the wall climbing, Fubuki has gained a lot of Stamina. Then they go onto the ship where they chit chat.
Skipping onto the battle
The one of the 2 mystery blader is Fubuki..
I don't know why, but Aiga was shocked at this? Like why?
The battle, it was indeed a 9 blader battle.
But Phai interrupts in between and says something to Aiga, which I didn't get  but it doesn't affect the battle.
The beyblades are launched, For the first few seconds I saw that Fubuki and Souh were in their own battle, but then, it all settled. Aiga is the first to get out, but he doesn't, he uses his spirit to gey Achillies back on track, and then,  Black rP!!!!!!!! Damn, it's so gorgeous!
It was outstanding. Using that, Phai bursted 7 beyblades without breaking a sweat! In a blink of an eye they all were bursted..
Fubuki throughout this was just spinning on the tornado ridge. Aiga and Fubuki then go head on on rP, then what do you expect? It's Phai.. Both Aiga and Fubuki use their special attack, but all in vain. rP burst them both.
After this, Phai leaves and Aiga goes running behind him but then stops, on the other hand, Fubuki got a taste of reality.. I guess he got to know that the standards had increased significantly than what they were before he went to America.

Preview of episode 21
Haha! This looks like a good episode! Looks like tag team battles. The one scene that became an eye candy for me was, Achillies was crushed between Vise Leopard and Forneus! That was so good! A
And,

This! To make Souh look like that in his dark form, I am pretty sure that Phai has something to do with the explosion behind. But Souh's expression!?

The episode was good, although not as good as I was expecting, let me get to that in a second.

So the episode has Aiga and the gang met by who I presume are fans and the girl hugging Ranjiro is definitely just clickbait that hardly anyone fell for I assume. They let them meet up with Fubuki to train with him and also battle. There is a nine way battle later on as expected, but I think the group were split into three? Phi wins... what a shocker.

Okay so the episode has a lot of content to make it good, like seeing Fubuki return and having the nine way beybattle, so what's holding it back. Well, my main gripe is just how quick the battle is, okay so I knew that when the trailer showed six beyblades running towards Phoenix, they'd get bursted, but they actually do that from the getgo and I was hoping for more mayhem before that happened. It's also weird to see Xhan get one shotted when: he is fighting Phoenix alongside everyone else, and when Phoenix never has the armour off at all. The battle is fine, but I wish there was more. Glad to see Fubuki back though.

While I absolutely loved the Fubuki/Shu bits, the battle was definitely weird. Was hoping for more battles between others (like the Fubuki/Suoh part), instead of everyone rushing Phoenix.