In the MCU/Marvel with the Omnitrix/Ultimatrix-Chapter 48: Should it be kept, yes or no?

I need a bit of help. See, I primarily wrote this fic for 2 reasons.

1) I like the Hulk, so when I rewatched a bit of Hulk clips from the animated series, I got inspired to write a Marvel fic

2) I wanted to write the Ultimatrix, but was getting a bit tired of writing DC only.

So! I'm not well versed enough in Marvel, and am trying to do research, but, I believe you guys can help me too, if you want that is.

I'm thinking of having Samael keep Dagon, but I need to know who villains are that can contend with a Multiversal Entity.

Thanos and Mephisto I know I can work with, but who else is there?

But well... That's currently pretty much it when it comes to top tier power house villains I know of Marvel.

I've always been a bit of a DC fan so... Yeah.

Do please help me out if you want.

I'll be writing a Chapter hopefully soon, and I hope to see you all later,

Bye!

Foll𝑜w current novℯls on ƒrēewebnoѵёl.cσm.