We're continuing to poke around with blue. Spy Network has been a mainstay since the beginning, but unfortunately has moved firmly into pet-card-that-might-not-actually-be-great territory. I loved that I could effectively tutor as well as have perfect knowledge... but the tempo and card hit was too much. It helped sometimes, but better card quality in the color will help just as much if not more. So, it's out.
I've played with Mind Bomb in a friend's version of this list, and the card is too much fun to not include. Also gives an interesting build-around for the blue player to play towards. The discard is neat with the recursion options in white and black, as well as the card just being good with the lifegain present in those colors.
Condescend was fine, if unexciting. I kinda liked the idea of blue having a bunch of topdeck manipulation and that being its "thing," but I'm leaning more towards versatility in card choice and instant speed interaction as the cube evolves. So, we're swapping it to Phantom Interference to give that a try. It's an early counterspell that's good later as a "haste" flier. I think it's worth a shot.
Cabal Therapy was an answer to the boogeymen of the early version of the cube, the Slagstorm lifegain lists and beacon of destruction control lists. Those have been toned back with the other changes to red, leading to Therapy becoming more and more irrelevant. So we'll swap it for Unearth. Originally I had wanted white to have the exclusive recursion, but with Mind Bomb and other things appearing I think it's worth trying out a bit more in black. Might enable more Archfiend Vessel decks as well.
I appreciate all the folks who have given me feedback. It helps me inform the decisions I make!