EXT.
Optimus Prime and Megatron stand opposed.
Optimus Prime
Hold! Megatron, you have fought well but stand on the cusp of defeat. Stand down so we may end this day without slaughter.
Megatron
Fool! You think me defeated? You’ve only shown me you are strong enough that I must at last use my ultimate weapon.
Optimus Prime
What?! It cannot be! Do you speak of …?
Megatron
Yes! I have here the AllSpark! Victory is lost to you. You have no hope of defeating me now.
Optimus Prime
How could this be? Is that the end of the Autobots?
Megatron
Hahahahahahaha … huh? What is there to grin about?
Optimus Prime
There is one thing you haven’t thought about. There is a way to trump the AllSpark.
Megatron
What… you cannot mean?
Optimus Prime
Yes! I have here the Matrix of Leadership! The only thing in the universe that can withstand the AllSpark. Bow to your fate.
Megatron
But how … no matter. You may have the Matrix of Leadership but I can always summon a greater power. Behold! The Pillars which I’ll use to summon Unicron. You have no chance with your puny Matrix of Leadership.
Optimus Prime
It can’t be! I am not strong enough to overcome Unicron. But wait! If I use my Transformium, I may be able to create a weapon more powerful than Unicron.
Megatron
How do you have access to Transformium? It is the rarest element in the universe. As it happens though I have a Seed, with which to produce even more Transformium. Which will overpower anything you can create.
Both opponents use their Transformium to fashion new weapons.
Megatron
You are doomed, Optimus! For I wield Merlin’s staff with which I will transfer the core of this sorry planet to another dead planet for some reason.
Optimus Prime
Your wickedness knows no bounds, Megatron. But seeing your evil I have no choice to try and stop you with this Excalibur!
Megatron
But how did you know the only weakness …?
Optimus Prime
Kame-hame …
in cooperation with a rhyming snail
Wikipedia: Transformers (film series) and Dragon Ball (manga)