@Reeplcheep we're not really getting anything worthwhile from the entire green color, it is not getting a basic Forest slot. It wouldn't even get a Savannah slot were it not for Timeless Dragon. Prismatic Vista can't get green, but it's fine we have 3 slots of Boseju as the green source for Prismatic Ending; the fixing hasn't been compromised.

Mountain -> Boseju
Plateau -> Savannah
Spikefield -> Boseju
B Wish x2 -> Verdict, Humility
Lotus -> Boseju
-1 Brainstorm or -1 Standstill -> +1 channel Turtle

^Just note that we've lost the utility of Wish and Pyroblast, and have crippled our deck's position vs the meta. Adding more Saga and going to 4x Shark'nado is regressive (this has been discussed exhaustively over the last 2 pages). Any excess slots are going to SCM and Dress Down.

On the SB:
-Humility came to the maindeck
-E Tutor will only ever stay at 1x
-We can no longer use Cataclysm (no Wish and no room for Lotus to exploit the asymmetry)
-Seeds is a bad magic card, and has color reqs. We don't have to play Seeds b/c we have white cards, and we have no problem killing a Kappa. We want cast'able cards, in either UW or colorless, and we want them to beat Chalice. Once we know Chalice is out of the equation, we find cards that obliterate the hand of 8cast as they panic-spew Force pitching a draw 2 (or a Kappa). Then we obliterate their hand again on 3 mana with Teferi - and now we have FoW superiority and Verdicts. This is how you beat 8cast, this is how you beat Kappa. We invest money on cards like Serenity or Powder Keg or EE, not Seeds. Note how Powder Keg and EE have text vs Elves, Delver, etc.
-Carpet is a bad magic card. The last thing I need to be drawing when I'm trying fix the battlefield for a Standstill deployment is Carpet. Even worse is resolving Carpet and then topdecking more Carpets. I'd only play 1x Carpet...except I really doubt I'd ever E Tutor for it...so it's not getting a slot. Now if Carpet has extra text like "pay 8 mana, sacrifice, draw 2 cards" then I'd be less hostile to a singleton.

Green is pretty worthless as a SB color when you don't have the critical mass of green cards to pitch-cast Endurance and FoV. I mean I guess you can troll a local meta/small room full of discard spammers with SB Veils, but there isn't much benefit to be had here. 2x Crop Rot and a Bojuka Bog is powerful I guess, but too much loss of SB space. A single Uro is fine vs opponents on slow decks without Wasteland. Doubt I want to board 2x Ice-Fangs. Don't see a reason to have Loam. Flyabolic Edict seems redundant. Sylvan Library would be fine if we somehow had life gain (Uro doesn't work with Standstill). An amount of green cards can beat Thassa by putting cards back into the deck (Noxious, Memory's Journey), but these are super narrow and all basically outclassed by Fractured Sanity. Return to Nature is reasonable. Ground Seal is technically fine. None of this is worth losing red blasts for.