The Most Destructive Fictional Power/Object

[LogicNProportion]

This:

Spoiler

That right there destroys and recreates the universe an infinite amount of times each time it is performed. I've challenged all I know who knows that gesture to describe, in writing, all that gesture contains. They can't do it...not even my english teacher. It's just...too awe-inspiring and awesome for words...

 

[WolfThomas]

A cosmic cube from Marvel, basically power to re-write the universe. One of the saints of killers guns from Preacher, able to kill anything and never miss regardless of the situation.

Plus objects like greenlantern rings from DC and negabands/quantum bands/nova force equvalents from marvel universe.

 

[LogicNProportion]

His Pencil of Doom beats all!!!!

Seriously though, the C'tan god from WH40K. A sentient star-eating god that is immortal.

In all fairness, I think Ferrus Manus choked one of your gods under lava, and took his powers Megaman-style...

 

[Dylan Voyda]

Tri-Lithium

 

[feeback06]

couldn't the Invincible from FF 9 devour souls?

 

[Eclectic Dreck]

The Death Star

Proton Torpedoes.

Okay, seriously though, I'd say the existence of mathematics. Because we all know what happens when you divide by zero...

THE ANTI-LIFE EQUATION?!?!
D:

Nothing happens at all. Division by zero is undefined. There is an entire branch of mathematics that attempts to get around this little problem where it was found that one can examine what happens as you divide by a number that comes arbitrarily close to zero. The result. There are also problems that might require one to take the sum of an infinite series (say a Riemann sum) but traditional mathematics meant this was fairly difficult.

The real reason Isaac Newton is the deadliest son of a ***** in space? He created Calculus - a subject some of us will spend several years studying in the span of a few months so he might answer the question of a colleague. Newton: A man for whom the phrase "I don't know how to do that" wasn't good enough. Until he turned 26.

 

[ultrachicken]

Well in Ratchet and Clank Future: A Crack in Time there was this huge object called the Great Clock. It was made in the exact center of the universe give or take 50 feet and its purpose is to keep the fabric of time from destroying the universe. However if you try to use it as a time machine then well the whole universe gets destroyed....EVERYTHING!!!!

In my eyes destroying everything seems like the most powerful "weapon" at least to me.

I wondered for the entirety of that game why Orvus didn't just remove the lever.

 

[Malgorath]

Gotta give it to the reality bomb. All matter becomes dust. The dust becomes atoms. The atoms become...nothing.