Are you playing Ground Seal in the SB just to deal with Welders, or are you concerned with Dragon as well?  (I'm asking because you have 3 BEB and Snuff Out which also combat Dragon)  If you switch it with Engineered Plague you have a solution to both pesky Welders and Spirit tokens.

Also, while Energy Flux is devastating against Workshop Prison decks, it's not as good against 5/3  (I've never actually played Flux against 5/3, but I've read several people give this opinion on the forums)  You may want to find another solution to your artifact woes.  Also, no Berserk in the SB?    
I would think this would be handy against Workshop Aggro, and those Agrro scrubs that you want to beat too.  

Good luck with the deck.

Hello, I played UR Phid at the tournament.  I was expecting a field of Fish, 4CC, Workshop Aggro, and Mono Blue.  I ended up going 4-3.  The biggest lesson I learned was how much more potent Energy Flux is than Rack and Ruin right now.  (So many times at the tournament I could've dropped Energy Flux and won the game, but instead I was running mediocre Rack and Ruins.)  Here's a brief summary of my matches:

Round 1:  Animal Farm  WIN
Game 1:  I stabilize with turn 1 Mana Leak, turn 2 Phid
Game 2:  I resolve an early Blood Moon

Round 2:  TPS  WIN
Game 1:  I get an early Phid, he resolves a draw 7 but craps out
Game 2:  I Rack and Ruin his 2 mana sources

Round 3:  Heavily Metagamed-Sligh  WIN
Game 1:  I cast Ancestral Recall AND Time Walk on turn 1
Game 2:  I Ancestral into zero mana sources and die
Game 3:  I start with Island, Mox, Mox, Mox, Tinker for Colossus

Round 4:  Workshop Affinity  LOSS
Game 1:  He resolves Skullclamp and Welder before I can counter
Game 2:  I counter some threats but a Welder slips through with Jar in yard

Round 5:  Crucible Stacks  LOSS
Game 1:  I get an early Phid, but eventually he baits me with Platinum Angel and Mindslaver and his Smokestack resolves
Game 2:  He resolves 3Sphere then Crucible with Strip Mine in yard

Round 6:  Fish  WIN
Game 1:  I don't draw a red source and die to Spiketail + Lavamancer
Game 2:  I Fire/Ice his Lavamancers then cast Tinker with FoW backup
Game 3:  I break his Standstill with Ancestral (resolves), then cast Tinker with FoW backup

Round 7:  Crucible Stacks  LOSS
Game 1:  I kept a hand with no FoW and he plays Wheel of Fortune (bad way to find out your opponent's playing Stacks)
Game 2:  I resolve Ophidian and Drain his Smokestack with Gorilla Shaman in play
Game 3:  I FoW his turn 1 Smokestack, I dont have the counter for his other threats


So I end the tournament at 4-3.  It was pretty fun despite my poor performance.  I got to face opponents from 4 different countries which was cool.  As for the deck, 2 MD Disks were nice for the day, the 2 Cunning Wishes sucked.  All I ever wished for was Rack and Ruin and once for Red Elemental Blast.  Flametongue Kavu also sucked, as I didn't face any Aggro decks.  Rack and Ruin was okay, but Energy Flux would've been an absolute bomb.  All my opponents were cool, which I can't say for the other formats I played in.  The highlight of Worlds for me, though, was getting my cards signed, including several playsets of Welders, Brainstorms, and all the U/G madness stuff.  See you next time!

EDIT:  Decklist

4 Mana Drain
4 Force of Will
4 Mana Leak
4 Fire/Ice
2 Cunning Wish
2 Nevinyrral's Disk
4 Blood Moon
4 Ophidian
1 Ancestral Recall
1 Thirst for Knowledge
1 Fact or Fiction
1 Time Walk
2 Morphling
7 SoLoMox
6 Island
2 Flooded Strand
2 Polluted Delta
4 Volcanic Island
1 Strip Mine
4 Wasteland

SB:
3 Red Elemental Blast
1 Tinker
1 Darksteel Colossus
3 Rack and Ruin
1 Gorilla Shaman
1 Blue Elemental Blast
1 Hydroblast
1 Stifle
1 Razormane Masticore
2 Flametongue Kavu

Hi, I tested/played this deck in a couple of small tournaments a while back.  I think it is a good deck, but it does have a glaring weakness- Workshop Aggro decks, particularly those that run Sundering Titan.  Their creatures are bigger than yours, and they come out before you can get the Bazaar engine going.  If you don't run the 2 Cunning Wishes that some of the Italian versions run, the Workshop Aggro matchups (Tubbies, 7/10) seem almost hopeless in game one.  Recurring Duplicants or a lone Platinum Angel can be a nightmare if they manage to reach play.  Even post-board, with around 4 Artifact Removal spells, it's still a difficult matchup.  One other thing, the Fish matchup can be very hard!  You don't run that much acceleration and the deck is fairly mana-intensive.  Unless you resolve an early Mongrel, they can out-tempo you, and after one of your lands gets Stripped it can be tough to recover.

I don't want to sound down on the deck though, since I think its versatility and uncounterable draw make it good.  The Pyrostatic Pillars are really strong, I even tried maindecking them for extra game against control.  Also, I like the exclusion of Arrogant Wurm.  You lose some of the surprise factor and the ability to cast EOT threats, but being able to Bazaar the Roars away at any time is probably better than having to hold back 2G for the Arrogant Wurm.

Nice thread, it actually inspired me to put the deck together...

I am curious about people's thoughts on the win condition, which is usually 2 Morphlings or a combination of Morphlings and Shoreline Rangers.  I've recently been playing vs. Fish, and haven't been happy with Morphlings;  it can be frustrating to play such a mana-intensive creature against 5 Strips and Null Rods.  I would end up being able to swing with Morphling but not be able to untap and also give him flying for defense.  I first dicked around with Tinker-Colossus that Gandalf suggested, but wasn't satisfied since actually drawing the Colossus at any point is horrible.  But I liked the Tinker idea, so I tried 1 Morphling-1 Tinker-1 Razormane Masticore as the kill conditions.  It works quite well against  Fish, making both Tinker and Razormane Masticore must-counters(especially sweet is that the Masticore still works under Null Rod).

I think Tinker can be good in UR Phid (not awesome like in Slaver or some other decks) if you have at least a couple targets for it.  I've been trying 3 Isochron Scepters along with 1 Crucible of Worlds (I'm running 4 Wastelands) as alternative Tinker targets, and have been content with the results so far.  I also have Mystical Tutor in the sideboard to Wish for, so I have a crude tutor chain for Tinker.  So, any thoughts on the Razormane Masticore?  I realize he probably sucks ass against a deck like Drain Slaver and is not as good as Morphling against 4CC, but I think he could be a great boon against tough but winnable matchups, like Fish.

Hey, great job winning the tournament, and nice report!  I have to mention that in game two of our matchup, (Tog vs. Madness) had I been running Firestorm in my board, I would have been able to wish for it and clear your board.  Instead I was picturing my sideboard in my mind's eye, feeling like a total jerk for running Fire/Ice.  I won't make that mistake again.

Anyway, in hindsight, would you still have sided the Wonders and the Basking Rootwalla against me?  It seems to me the first thing to board out would be an Arrogant Wurm or two, but I'm not sure.  BTW, Raziel, I would love to attend the C&J tournaments once again, but I currently don't have a car.

I would have to agree with the people not running Solemn Simulacrum.  Ostensibly, the main reason you're running him is as a mana fixer, the rest of his abilities are just gravy.  The problem is  AEther Vial isn't a great alternative because you have to drop it before Chalice if you want X=1.

So why not try Illusionary Mask instead of AEther Vial?  It can be played after a Chalice for 1, and the one extra mana over AEther Vial shouldn't be prohibitive in a deck with so much fast mana.  I know it costs one mana to activate as well, but AEther Vial cant be activated until the next turn anyway.  I'm certainly not sure that Mask is the answer in this deck, but I also feel that Solemn is not either- he's only really fantastic when you've got an active Welder, and you should probably be winning at that point anyway.

Hey, I love the deck.  LLL makes me reminisce to the days of pre-Urza's Extended.  Just wondering:  Did you ever consider using Snow-Covered Forests instead of regular ones?  That way you could Thermokarst one of your own lands to gain 1 life if you were desperate.  It's a very minor point, but it could possibly buy you that one extra turn you need to seal the game against sligh or something.