I don’t see how any of these other characters can kill Zeno. I’m not saying he can kill them. I just know he’s not getting killed by any of them.

I havent seen all of these franchises yet but I notice these types of fights are quite common online parting omnipotent/near omnipotent beings against each other, I will say this, if any of those other 5 beings have the ability they can go back in time and prevent zeno from being born and take him out of the equation otherwise its going to be perhaps impossible to eliminate him.

What if Zeno always existed? Then there is no point you can go back to that would give you that opportunity.

I could see Alien X and Zeno being the last 2 alive and at a stalemate, they are both omnipotent, omniscient (i think) and omnipresent (I think), Bill cipher would probably be third, Archie Sonic would also maybe be 3rd, and lucifer... is just there.

I forgot to mention anti spiral, probably 3rd, so archie sonic and bill would fight for 4th.

Alien X has no feats about BoG last I checked Nor is he immortal, he can die on certain planets as the creator of ben 10 confirmed and can be beaten by other celestialsapians Zeno erases him 100%.

As much as I love Bill Cipher, I really can't think of any realistic way for him to beat Zeno

Zeno was said to be born 8 million years ago in db timeline and there is characters older than him, ergo he didnt always exist.

I misclicked Zeno.