Somehow I missed that Planar Disruption hit artifacts when I last read it. Whoops.

Spyglass Siren is better than Faerie-Seer in non-blink decks, and maybe even in blink, too.

Confounding Riddle is strictly better than Supreme Will in every way.

Jace's Sanctum is kind of clunky, and I think the spells deck does well enough without it. MTGS is pretty hign on Hour of Need, so let's see what it's about.

The extra treasure from Deadly Dispute isn't worth havign to leave an extra mana open over Village Rites, and an artifact is hardly ever getting sacrificed in this cube.

Bitter Triumph hurts more than Infernal Grasp, but the alternate cost makes it much better for control and gives the potential for upside with graveyard decks as well.

Deep-Cavern Bat is enough of an upgrade over Mesmeric Feind that it seems very playable, while I haven't been too impressed with Gravelighter.

Sling-Gang Lientenant's effect is kind of restrictive, and it feels a little bad at 4 mana. Lazotep Reaver gives you multiple bodies to sac for half the mana. The same goes for Beetleback Chief and [[Mogg War Marshal].

Dark-Dweller Oracle hasn't been played much as a sac outlet, so we swap it out for Belligerent Yearling which is pretty pushed statwise. We can replace it with Bogardan Dragonheart which is an unrestricted sac outlet, which can also be played in aggro to help convert 1-drops into something that can close out a game. Subira, Tulzidi Caravanner occupied a similar role for aggro decks, but was a bit mana-intensive.

Careless Celebrant is pretty different from Heartfire Immolator, but I like how it continues to lean into red control.

Frontier Warmonger should have replaced Angrath, Captain of Chaos originally, and Geological Appraiser is obviously very good.

Deathbonnet Sprout is a little narrow, while Cenote Scout is an amazing 1-drop that can go in a wide range of decks while still providing a little for graveyard decks.

Poison Dart Frog might be the best rainbow maa dork in this format, its ability to convert into a blocker that can take out anything lategame is huge.

Trostani's Summoner is good, but really more of a mono-green or graveyard card. Kutzil, Malamet Exemplar protects you on your turn and gives card draw in colors that don't have too much.

Stormclaw Rager being restricted to sorcery-speed only is annoying, while Zoyowa Lava-Tongue can be a 2-mana Torment of Scarabs in the right deck.

Bartolomé del Presidio is an unrestricted sac outlet over Hidden Stockpile.

I like that playing Scampering Surveyor still gives you board presence for your 4 drop vs Hedron Archive, and the fact that it can color fix is also nice.