I just made an account so I could get in on rebuilding this deck. I ordered what I need to finish iwr09a's list. Did some testing on cockatrice and I felt like I didn't have cards to discard with Cathartic Reunion often enough to justify 4x. Tormenting Voice might be better just because it's cheaper. I'm not sure if draw 2 will cut it over draw 3 but I'm going to test it out more once I get everything in the mail. I'm probably going to stick to 4x Sleight of Hand. Most of the discards are off of Ascendancy triggers and I think that's enough. Ideas Unbound might be better for that slot but I've never played with it. Bought a set just to test and I'll report back eventually. Honestly, it doesn't feel too much worse than my old 3-color Probe list when you're comboing out but I miss Lightning Bolt, Path to Exile, and Pyromancer nonsense. I don't care for the Glittering Wish style but maybe it will grow on me as I get better with it.
Mystic Speculation is like a pseudo-Ponder with a Jeskai on the board. I think it's worth messing around with if you're trying to dig for Shadow of the Grave. Not sure that makes it better than Sleight of Hand. If you draw it early, it might just set up a win the next turn or two. You would get hosed drawing it if you're top-decking and only have one turn before you lose but I don't know how often that happens or if you wouldn't just lose anyways. Since it's not a Pyromancer list, a 1 or 2-of could be useful. Some of the other cards mentioned in the list posted by sf45 look spicy.
Mystic Speculation is like a pseudo-Ponder with a Jeskai on the board. I think it's worth messing around with if you're trying to dig for Shadow of the Grave. Not sure that makes it better than Sleight of Hand. If you draw it early, it might just set up a win the next turn or two. You would get hosed drawing it if you're top-decking and only have one turn before you lose but I don't know how often that happens or if you wouldn't just lose anyways. Since it's not a Pyromancer list, a 1 or 2-of could be useful. Some of the other cards mentioned in the list posted by sf45 look spicy.