Might be good enough for Vintage, as its that crazy with Wheel Effects, Memory Jar, Bazaar of Baghdad and stuff like Faithless Looting, Dack Fayden turns into draw 4 and so on. If you hit 1 big effect its just nasty with cheap spells (and even more so with free ones and lands).
Being a 2 mana artifact helps the package.
And this card as UNCOMMON is quite surprising, could easily be a Mythic for that effect, as the card is actually good, other than a lot of Mythics in this set.
The card is basically never bad, even if it turns the opponents discard spells against them, or helps your own, its just good in every case and hardly ever a dead card, so much you can do to work with it.
Conspiracy Theorist basically didn't see play in Standard and up, from what I'm aware, and Conspiracy Theorist actually enabled itself. Do be careful when evaluating Containment Construct as a result.
There is one YUGE difference between the two cards, Conspiracy Theorist required one extra mana to work, this is probably a better build around card, though I don't think it will be a player in Standard unless future sets bring Cycling back. Pioneer? Maybe worth a shot, too bad the Onslaught cycling lands aren't legal there.
Yeah, but Conspiracy Theorist only needed the mana to draw/discard. This card doesn't have the self-enabling option. Upside to this is if you discard a bunch of cards at once, you can play as many as you can. Theorist says you can only cast one of them. Other upside is playing lands off of this guy. Pros and cons to each, but I do think this is arguably better.