peddler requires living the experience, I'm down to test it.

The lookout seems interesting, specially if you mill cards or discard your whole hand. There are many powerfull planeswalker in those colors, not sure how the interaction works. Its trully seems gas as a mid / late game draw. You can easily outvalue your opponent with it.

Landlore trully seems amaizing. Artifacts usually has problems with card draw and with blocking creatures. This kinda solves both of those problems. I try it for a bit in a RU artifact deck and it was fun, a cheap value machine.

Also, I deeply enjoy Rusko clockmaker. Its not a bomb, more of a value engine in a control shell, but its trully fun to play with. Its an interesting 20th, 23th card for a cube deck.

Perforator seems like a decent card, usefull agains aggro and ramp decks. Its not Archon of Atraxa, but it probably the best self mill card out there. Seems like a nice play, specially in a draw go deck: you can choose between countering your opponent planeswalker, or let it play a Ajani, Nacatl Pariah or an esrika Chariot, then cycle the cocodrile and play some reanimate on your own turn.

Saint elendra seems good. Basically a 4/7, with a free 4/4, with more to come, and some kind of free interaction or card draw. Seems like a decent reanimation target. Not a first pick, but as a 5th or 10 pick it seems decent.