Is this the actual deck? Cards are missing.

I’m very close to finishing this deck, but the cards Tabernacle and Timetwister seem to be too far out of my reach monetarily. What would recommend replacing these two with?

Maze of ith for the land

Kcucullen - To be honest, I wouldn't run Tabernacle as it's counter productive in this deck. The Construct + Urza (requiring tapping down for 2 each turn). I've got a very similar but more streamlined Urza build listed here w/o Tabby: Urza Feeling Lucky - cEDH Primer #1 Mono Blue

My suggestion for the OP is to cut the following:

• Defense Grid
• Tangle Wire
• Trinisphere : I have reasoning on my desk list as to why this card shouldn't be included
• Thought Vessel
• Mind Stone
• Null Rod
• The Tabernacle at Pendrell Vale : somewhat counter productive
• Defense Grid

A few suggestions on cards to include:

• Sapphire Medallion
• Etherium Sculptor
• Narset's Reversal
• Force of Negation
• Howling Mine
• Trail of Evidence
• Tribute Mage
• Dig Through Time
• Trickbind

P.S. Something to add you your "win lines" Muddle the Mixture + Rings of Brighthearth : Copy Muddle the Mixture 's transmute ability and search for Dramatic Reversal + Isochron Scepter or Grim Monolith + Power Artifact.

ToffMcSoft that win line is really great! Fantastic idea!

Let me try this out with your suggestions and see how it does. Thank you very much for your input!

I wound up cutting Blue Sun's Zenith and Stroke of Genius from my list. If I get them off Urza's exile ability they don't do anything as a win con which leaves me hard playing them (which I would be fine with in other decks, but this deck can win in so many ways as long as the engine is running) and usually playing them for "value" earlier in a game where the value I found in testing so far wasn't an ideal fit. If the deck is already pumping with it's engine and can loop the graveyard and library (with Narset's Reversal and Timetwister for example) then it can win just by looping a Pongify , Rapid Hybridization , Swan Song or Chain of Vapor on Urza repeatedly. All of those spells double as interaction as well as win cons and are lower on the curve than BSZ and SoG. Likewise, I found Jace, Wielder of Mysteries to be essentially a dead card at all points. Instead I've found that changing more of those card slots into just being things that start the engine running was more useful.

Also something to think about on the Null Rod note: Karn, the Great Creator accomplishes the same effective task of shutting off opposing artifacts while also doubling as resiliency and removal. If an opponent exiles Paradox Engine or your other artifact based combo pieces you can grab them back from exile (face up or down exile to boot!). If you just don't want your opponents to have a zero cmc artifact then you can plus Karn and send that Mana Crypt to the crypt. Sure it was already turned off, but if they kill Karn later that Mana Crypt won't turn back on while Null Rod can't say the same. Having the same stax effect, but asymmetrical by design, attached to better utility totally justified the higher cmc in my book and it has worked well for me so far in testing.

I'm working with this list here: Looper, if you'd care to have a look and drop some thoughts or maybe find some inspiration.

Do we have an update now that Paradox Engine is banned.

Why does Tappedout says this deck is legal even though it has Paradox engine?

FireZombie1134 looks like it's saying it's illegal at the moment.

Any chance this gets updated post PE ban?