considering the new reveal, it seems that C&L’s are just Sun and Moon, otherwise she would’ve said that she and Celestia were Fire.

There’s a line break there that looks like it just didn’t render properly (unless that screenshot is from the G5 MLP wiki, which I admittedly haven’t checked)

@angryprogrockbrony
Also that might actually be possible too. I mean Celestia fell flat face to Chrysalis while Luna not only defeated more villans herself (e.g. Tantabus or even Sombra. Yes I know idw is not necessarily canon but she does say a few dialogues in the crystal empire episode that indicate she might have actually defeated him and not Celestia, also because Celestia fails to defeat him in the Season 5 finale and that is in Luna’s absence) but she is also the only one who was able to turn into her nightmare form (Daybreaker was only Starlight’s bad dream and might not necessarily be possible outside the dream realm in real Equestria, Opaline’s origins have not been confirmed yet, EQG is a different verse of it’s own and nightmare Rarity is not canon) so yeah.

Where is Avatar Alicorn?

Some still forget that she calls herself a fire alicorn.
“I’ll be the most powerful fire alicorn of all time!”

And don’t forget this:

@angryprogrockbrony
Yes, I know, but I just felt water suited her personality more.

So Celestia is a fire alicorn and Luna is a water alicorn? And water > fire.