Apparently this card didn't get a spoiler post (unless I missed it). Time to rectify that.
Everyone has their own process for evaluating cards. Some people look to draw comparisons to existing cards. Personally, I hate that approach. Very few cards are functionally equivalent and therefore justify comparisons. What do I mean? Disenchant and Fragmentize have the same function (destroying artifacts and enchantments). Disenchant was a playable card in Vintage and because Fragmentize did the same thing, it makes sense to compare these cards to establish whether or not they are playable. In the end, it was clear that saving a mana was worth the timing and targeting restrictions. Jace, Vryn's Prodigy is not functionally equivalent to Snapcaster Mage or Merfolk Looter, and so evaluation by comparison missed the mark on the card. It makes much more sense to evaluate Jace in the context of how it functions first before any sort of comparisons are made.
Why bring this up? Well, it's very tempting to view The Antiquities War as a bad Tezzeret baby. After all, the card is combination of Tezzeret's abilities in Enchantment form. You do that, and you end up quickly dismissing the card. Tezz the Seeker mostly sees play because it searches up Time Vault and wins the game that way. Tezz Agent of Bolas doesn't really see play at all. Tezz, Antiquities War doesn't serve as an obvious upgrade of either and so many players dismiss it and you end up without a Spoiler thread on TMD.
Let's step away from comparisons and focus on what the card does: In an artifact heavy deck, it impulses for 2 turns then wins the game. It's immune to Revoker effects, can't be attacked by creatures, doesn't require that much set up (it digs up 10 power of attackers. It does get hit to Pyroblast but then most of the cards you are running in Blue suffer from that (well, not Karn...more on him later). That's...not bad right? Suspend 2: win the game for 4 mana with a couple of artifact impulses? I thought not and so I built a deck around this and streamed it. If you missed that (I apologize...the videos get mangled due to twitch's copyright filter), to summarize: the card was a very solid win condition in the Thoughtcast, Mox Opal, Seat shell. It's immune to rod, you can drain into it pretty easily, and it fuels itself. It's less powerful than Paradoxical Outcome but the cards are complimentary - If you lack the artifacts for PO (which happens a lot), TAW will find some for your next turn. After you've PO'd, dumped a ton of artifacts into play, then passed back with counterspells to stop your opponent for one more turn, TAW wins the game. Synergy. I frequently had issues with Tendrils being a dead card when not comboing out. Or drawing a Blightsteel with my Tinker and then hating life. Or getting my Time Vault Dacked. TAW doesn't have those issues and therefore provides several advantages to the Thoughtcast PO deck.
My next stop with the card will be that list above (I was trying to make Damping Sphere work too, but I feel those go in different decks). I hope to stream it on Friday, but until then I hope this prompts some discussion on a card that has until now flown under the radar.
Edit: here is the rough draft of the first list