So Lex Luthor took KC Superman's place in fixing the crisis?

LUCIFER WAS IN CRISIS!!! HOLY SHIT! IT WASN'T JUST A RUMOR!

AND HE'S MEETING CONSTANTINE AND THEY KNOW EACH OTHER

Must be taking place between season 3 and 4 of Lucifer.

If only he had survived the Anti Matter wave. He would've actually been a huge help against the Anti Monitor.

Wow, what an episode! Thrilling, gripping, emotional, it was everything. By far the best episode so far of Crisis on Infinite Earths. So much to process, here are my main thoughts right now. Will have to rewatch again.

A really neat opening with Birds of Prey huntress. The surprise debut of Lucifer in the Arrowverse on Earth-666, that was awesome. I don't watch the show but that was really special. Oliver being reunited with his brother Dig, that was touching. I did like that Constantine said that this Spectre was not the one that he knew, so obviously this doesn't overwrite the version that we saw on his show. But can someone tell me what this means for Oliver going forward? So he becomes the new Spectre? What does this mean going forward?

I liked this Ryan Choi, his scenes with Iris were good. But most of all, I loved the sequence with team Flash, Earth-90 Flash, and Black Lightning with the cosmic treadmill. That was so freaking well done. The build up to the sacrifice was great, and then the switcheroo was well done. And seeing Earth-90 Flash sacrifice himself, seeing that scene from his show as he sees his life 'flash' before his eyes, that was deep man. Very well done. Also, loved Barry and Jefferson's talk after this on the waverider.

The ending... wow, first the entire Multiverse has now been wiped out, thought that Earth-1 would stick around for a little longer. And all those heroes on the Waverider, wiped out. The Monitor being killed. And then the transportation to the Vanishing Point, a really neat callback to Legends season 1. But then Kingdom Come Supes turning into Lex, that was a big shock. I love Cryer's Lex, though I really was enjoying the return of Routh's Supes, so hopefully we get to see more of him again.

Going to be one hell of a wait to see how everything ends in January. I'm guessing that the final episode will take take place with all of the heroes.