Entering the safe distance of the LEGO Dimensional Core/X-PO gathered his alliance

Here is how X-PO gathered his LEGO Dimensional Alliance in The Overlord Returns.

Soon enough, X-PO came to see his new friends.

X-PO: It's about time I found you guys!

Laval: Guys, it's X-PO!

Lloyd Garmadon: What're you doing here?

X-PO: I've figured you guys could use my help.

With that said, the LEGO Dimensional Portal was opened.

X-PO: ????

Twilight Sparkle: ????

Laval: ????

Li'Ella: ????

????

Lloyd Garmadon: Geronimo!

????