Adding a few more removal spells and changing a few of the mana rocks. Adding the Surveil lands as well.

Kitesail Larcenist is a decent disruptive element for blue decks that can also pressure some PWs as well. Ancestral Vision is a bit too slow for cube now a days, so I’m making this cut.

Cut Down is cheaper than Go for the Throat, not much to say about this one.

Flame Slash is cheap and efficient, not much more to say about this one. Imodane’s Recruiter is a pretty replaceable three drop for most red decks, so I’m ok cutting this one.

Fractured Identity was originally cut because threats were a little worse, and it was so punishing against midrange decks. Now their threats have gotten a lot better, and control decks needed a bit more power, so it’s back. Sphinx’s Rev is a little slow and was added to slow the control decks down, so it’s the swap here.

Night Scythe creates two artifacts, one of which is resilient to sweepers, so it’s worth trying out for me. Chromatic Lantern does help nicely with the domain decks, but I’m adding the surveil lands, so that makes it fairly easy to cut.

Palantir of Orthanc is a little slow, but can give some decks a bit of card draw/filtering that don’t normally have access to those effects. Skyclave Relic is also part of the surveil land cuts.

I debated adding the Surveil lands for a while, mostly because I felt I might be adding too many tapped lands, but also because I didn’t really want to cut any of my current duals. I also had to cut some colourless lands as well, which means adding new colourless lands in the future becomes a lot tougher. The fact that the Surveil lands just add so much for domain and smoothing out draws (the Temples were played once upon a time) and cutting the Thriving lands (tapped duals anyways) has given me the space I’ve wanted for them.

Ash Barrens and Fabled Passage are among the weakest five colour fixers (although I did consider City of Brass over Passage) and Crawling Barrens, Frostwalk Bastion and Mobilized District are the weakest colourless creature lands, even though all of these lands have been solid. Cutting the Thriving cycle makes sense to add another cycle of tapped lands.