Professor Paradox, Gwen Tennyson and others in “Ben 10,000 Returns”

Time to go. But first, a warning to my young friends. [In an ominous voice] Beware, old George. Beware the creature from beyond. [Cheerfully] So long.

What did he mean by that?

Who knows? I never understand what he's saying. I just tune him out.

Whatever the problem is, I've got Ultimatrix to spare. It is so hero time!

Eon irradiated Way Big with accelerated time. I'm afraid he's gone.

So is any other transformation he hits with that beam. Be careful, Ben.

He's the one who better be careful.

Swampfire!

Ultimate Swampfire! Take them down hard! Hyah!

Accelerate!

Tennyson, prepare to die.

Maybe later.

We're--

Right behind you. How about you explain yourself? Why attack me over and over?

Our paths are intertwined. In this and every other timeline. It's over.

Give it your best shot, Eon. Diamond doesn't particularly age.

I came here to destroy your younger self, but plans can change.

Contego! You hang around an Anodite for twenty years, you pick up a few tricks.

Weird that they don't talk.

Probably just to intimidate them.

Maybe. Makes me curious, though.

Then let's take a look. Statua!

Huh.

It's gonna be creepy. I bet they don't even have mouths.

Or something worse.

Ben? Get over here?

[when discovering that Eon's servants are versions of him] This raises some questions.

Yeah, like where did you learn ninjitsu?

You've discovered our secret.

You're not destroying Ben Tennyson's. You're absorbing them.

I feed on their power and make them my slaves. When I absorb you, I'll finally have the strength to replace this timeline with a new one. [Ben 10,000 revealed with Eon's mask] Where I will be the only Ben Tennyson that exists.