Thanos_THOTU
The Ghost Who Walks
I've done some futher researches.
I think you see a universe as a grape,
a multiverse as a cluster of grapes
and the omniverse as the tree.
But the fact is, if you have two unconnected universes and you take them and say this is two universes or this is a multi-verse.
In other words, a multiverse don't have to consist of more than two universes.
They say that the omniverse is every possibility-alternate-timeline.
Other words unlimited.
Now, it was also stated before the 80s that, "the Multiverse" consisted of an infinity amount of universes.
"All of the Multi-verse" = Infinity Universes = Omniverse
Beyonder did had "not" the power of millions of Multi-verses.
He had all the power of the "rest of the multiverse" combinded millions of times.
Why such limited amount?
Molecule man was inte the Multi-verse at that time as well.
And his power was a fraction of Beyonder's.
A million's-th piece of it.
That's how I see it.
And the chaos wave was not Wanda's power, it was the power created form "all the universes", she somehow just merged it.
As go for the Thanos theory I'm still a bit confused, there are still some things een in your theory that dont goes as they should.
But still Beyonder is #1 -- As I see it.