Seconding previous mentions of Naked Singularity and Reality Twist. The cumulative upkeeps are harsh, but Naked Singularity is probably easier due to the existence of Grim Monolith/Basalt Monolith and Power Artifact/Rings of Brighthearth.

This somewhat locks down card draw, but Zur's Weirding?

You might want to add Day's Undoing, The Great Aurora, and Tragic Arrogance to the list.

Vernal Equinox? Needs more green and black.

Lacking in black! Living Death and Twilight's Call?

Shahrazad is banned

Pyxis of Pandemonium

M8-- Sharazad or however you spell it isn't legal in EDH

Commander ban list doesn't show Shahrazad as banned. Doesn't that list take precedence over Oracle?

Check the gatherer, tappedout.net has some incorrect listing

That's what I did. I thought mtgcommander ban list took precedence over gatherer's Oracle text. Am I missing something?

This list inspired me to make my own, supplemental list. Viola: Flipped Off: A List of Coin Flipping Cards.

selesnyaben worldfire is banned

Might I suggest Psychic Theft or Squee's Revenge along side a Swerve to make other players flip coins

Temporal Aperture and Unexpected Results

Do these count? Sire Of Insanity and Manabarbs

Shifting loyalties ?

What about Invoke Prejudice?

I feel Dubious Challenge is very chaos.

The great Aurora

Infernal Genesis for sure. I need to put that BACK in my Daxos Retrned edh deck. You never know how many tokens people will end up with.

I just picked up for my Animar edh deck.:Time Bomb, Bearer of the Heavens, Tide of War

Chaos reigns supreme!

I'd Say add Eon hub, it helps keep a few of those enchantments in play that may cost more or risk blowing themselves up. I always love eon hub + planar chaos

Divine Interventionthis one is the moral win con of my chaos deck xD

I think that Boompile might be a chaos card.

I also think that Pyxis of Pandemonium qualifies