I think I'll just repeat what I said in the chat:

You have two teams of wizards. In order to make a move you must change shape into a creature or thing that beats, defeats or otherwise trumps whatever the other side has just changed into. So you might get a sequence like

Wizards: Elephant
Witches: Mouse
Wizards: Cat
Witches: Dog
Wizards: B - A - T - H
Witches: Telephone

at which point I have to admit I'm stumped so presumably the witches win that round.

And so it begins...
Puce
Aardvark
CdM
Green
American Automobile Association
White
Toyota Prius
Puce
[CdM] You should have gone for Laziness. Laziness beats aardvark any day.

The M25

Green
The M-16
Puce
The M-pire State
CdM
Green
The Petronas Towers
Olive Drab
(changing to a more interestingly named color team)
Burj Dubai
Goldenrod
The International Space Station Am I doing this right?
Tuj
Gainsboro
Asteroid Maybe we should go back to puce and green!
rab
Peach Puff
Lembit Opik Just wanted to play my joker
CdM
Green
Baroness Scott of Needham Market (Forced. Possibly.)
Olive Drab
Harriet Harman
Mahogany
Max Mosley
CdM
Green
Willy Wonka
Olive Drab
An Oompa Loompa with a grievance
Green
High-powered corporate lawyers
Puce
Tagon's Toughs (who have a standing bounty authorizing any member of the unit to shoot Partnership Collective lawyer drones on sight.)
Puce
Ha! Thought that might fox you! Round one to the Puces!
Let's start the next round with … a handbag.
aqua
A goat
CdM
Green
Damn. I think he won right there. Nicely played!
Malta
Puce
[CdM] I think so too.

Yalta

white
Potsdam
Blanched Almond
A-Bomb
white
A missile
all
Azure
Defence budget cuts
Goldenrod
A Dossier. No, you can't read the contents.
CdM
A freedom of information act
aqua
A politically biased judge
white
A Murdoch media slu... campaign.
CdM
green
A chip shop
CdM
green
A fish and chip shop
CdM
oops. A misapplication of the "whoops" button there.
all
Azure
A public health campaign
rab
Goldenrod
(Switching team allegiance, to keep silliness levels below an acceptable threshold) A botched knee operation
Goldenrod
[rab] I picked Goldenrod because of the connection with "The Witch of the Westmorelands". I think azure is confusing. I was expecting it to be a deep blue, a preconception left over from a dabbling in heraldry some years ago.
Olive
A large compensation payment
Goldenrod
Lawyer's Fees Pro Bono: To be in agreement with the lead singer of U2
aqua
Communism
CdM
The Cultural Revolution
Goldenrod
Teh Intarnets
Backhoes. Fibre-optic cable has only one natural predator; the bucket-shovel excavator, or backhoe.
all
Azure
A Potato. The natural enemy of all petrol driven vehicles.
CdM
green
A fish and chip shop
aqua
Mercury contamination
Goldenrod
The Government of Japan
white
Godzilla
Puce
Wallace and Gromit
Goldenrod
Nick Parks in a New York taxi
CdM
Green
Rosa Parks in a Montgomery Bus
white
Gangsta Rap
all
Azure
Rich white fans
aqua
I declare a victory for all.
Shakespeare
Puce
Rowling
CdM
Green
Archer
all
Azure
Kirk
Puce
Stallone
goldenrod
Stallone? Too obscure for me.
white
Schwarzenegger
CdM
Green
The California Budget Deficit
goldenrod
A written response to the opposition
aqua
Illiteracy
Olive
More investment in education
Goldenrod
A Tax Hike
white
The Cayman Islands
Goldenrod
High-speed, Cyclic Storm Systems
all
Azure
Temperate Climate
Goldenrod
Flatulent Fresians
aqua
A Dog With No Nose
white
Korean Chef
[juxt] How does it differentiate odours?
CdM
Green
Béarnaise
[Simons Mith] With great difficulty.
BurlyWood
Grizzly Béarnaise
all
Azure
Rotting Salmon
CdM
Green
A fish and chip shop
aqua
A Health & Safety Inspector
Olive
A machete
Puce
A sword
Goldenrod
A pen
CdM
Green
Writer's block
all
Azure
Single Malt
CdM
Green
Coca-cola and a slice of lime
[Just a thought] If Coca-cola "beats" Single Malt, this iteration of the game has no winning move. I'm not much of a drinker and I loathe scotch, but I can't make a case for Coke beats Glen Invercockileekie other than in the most narrow circumstances.
[SM] I was thinking much the same thing myself. Perhaps we should give this round to the Azure team?
Okay with me.
CdM
[SM^2] No, I think you missed my point. Coca-cola and lime defeats single malt by being mixed with it.
[CdM] Ah. But that introduces another quandry, namely: is the next move supposed to beat "Coca Cola and a slice of lime" or "Single Malt mixed with Coca Cola and a slice of lime"?
CdM
[SM} Presumably the wizard that had previously taken the form of single malt now has to change into something else, so it is just the Coca-cola + lime that needs to be defeated,
Puce
All right then, rum and coca cola.
*Bewildered* With, or without, a slice of lime?:/
Tuj
Lime
A ten-tonne lime come on, draw a line under it!
Olive
A candle
CdM
Green
The wind
Goldenrod
A bit of stripey canvas nailed to four wooden stakes.
all
Azure
A match
[all] In this gale? :)
aqua
A rematch
CdM
FIFA
Olive Drab
FOFUM
Olive
A beanstalk
Goldenrod
Agent Orange
all
Azure
Mr White
Puce
Professor Plum
CdM
Green
Lead piping in the kitchen
Olive
Health and Safety
Puce
Common sense
Goldenrod
An embedded hyperlink
aqua
Your nephew, who despite being only eight knows more about computers than you ever will
all
Azure
Napalm - It's the only language they understand.
Puce
Fuel-Air Explosives
aqua
The cold vacuum of space
CdM
Green
The total perspective vortex
Olive
Zaphod Beeblebrox
Puce
Ace Rimmer. What a guy.
Olive
Victory for Simons Mith I feel.
Puce
Thank you. I was quite pleased with that one.
Marmite
aqua
Dynamite
all
Azure
Jamiroquai
Tuj
Lime
A ten-tonne lime
Puce
The invincibility of the ten-tonne lime is something that surprises me, but I haven't thought of a satisfactory counter. Time to award this one to Tuj … and put the game into storage ready for next time.
Audience
*shouts, screams, generally goes wild for Simons Mith*
Puce
… An eleven tonne lime. Dammit, l'esprit d'escalier rides again.
aqua
All I could think of was Lyme disease.
Tuj
Lime
A million gallons of G&T? But that'd just be getting silly, eh?
goldenrod
I'm a tad rusty in my French. I translate l'esprit d'escalier as "the phantom staircase". This is obviously a cunning metaphor for something to do with eleven tonne limes (or perhaps twenty-one tonnes of limes), but the meaning escapes me.
L'esprit d'escalier
It's an idiom for thinking of some witty retort just after the last moment.
#66FFCC
Isn't it "the spirit of the staircase?"
Puce
Let's start a new one. An eleven tonne lime
An industrial lime-squeezer
Blue
A hell of a lot of Mojito Mix
puce
Prohibition
Blue
President Franklin Roosevelt
aqua
A Fourth Term
Tuj
Lime
The Fourth Estate
#66FFCC
The Saudi Monarchy
Lime
The taliban.
#66FFCC
Bacon.
Blue
A London Cabbie
Blue
This is the end of the line. There is no more.