Wow, been testing the bloom loops for the past 3 days ever since I saw this. Absolutely love it, it's never bad to see a Squandered Resources or Summer Bloom on a good Ad Nauseam turn, or coming off the back of a big Mystic Remora cycle needing to unload and win. The sanctuary itself is a strong piece too, though certainly is hard to pull off early game, needing so many islands.

Finishing it off, the cycling lands just allows the deck to be more efficient at coming back from mana flooding, and can really store up some straight value with the crucible style effects. Those even work just fine with a fetchland, and with all of that, the deck has additional winlines, additional ways to get more lands, returning from mana screw, and lands that allow you to return from mana flood.

It just is a pile of good cards that fix the most awful parts of the randomness of the format, while also giving you a stupid good way to win the game, even if only as a backup.

I've been testing more, and think that Life from the Loam acts extremely powerfully in this shell.

The idea is similar, however rather than comboing using the deck's pieces, adds redundancy in the way that it recurs valuable lands, and countering it just allows you to get it back. While looping cycling and sac-to-draw lands with it, the card even allows for heavy grind value too.

Again, this is more to remove the chance of both mana flooding and screwing, but I feel this pile could work with many value pieces and needs more minds tinkering with it. Did you come up with it yourself?

SynergyBuild

The play patterns it consistently enables to allow extremely consistent development advantages is definitely the best upside to playing a Bloom Combo package. The cards are almost never dead in the way a Thassa's Oracle, Doomsday, or Aetherflux Reservoir can often be, don't slow down the speed with which the deck can employ it's primary combo lines, and provide an almost insurmountable board development lead in games that turn grindy and go long (which is most every game in competitive EDH settings these days given the crazy amount of cheap, effective interaction available for most of standard meta fast combo win lines).

Life from the Loam is a nice complementary piece to the concept and a card that fits in certain shells, but just lacks a suitable card slot in T&T variants due to the greater effectiveness of some of the hate pieces that provide more reliable boosts to win rate given the data we've collected. I still run Loam in the Tasigur shell variation of this concept, and would strongly recommend it's inclusion for any deck running this concept in strictly Sultai shells. I might also recommend it for Simic variations of this concept since the combo is less streamlined as it requires Trade Routes, Lotus Cobra, and often a land like Gaea's Cradle.

The concept was more of a group effort by my play group than a pure solo effort. I certainly had the initial idea for looping Summer Bloom, but as with most of the highly competitive stuff I post on Tapped Out the iterations that get posted are largely the product 4 minds that all played MTG at the professional level working together. The Inception concept was a similar idea that evolved within our playgroup as a means of besting a stale, stagnant competitive meta that's been rather lacking in innovation for the last few years. I'd love to be able to claim sole credit for the ideas, but that's just never been how things in our group have worked for most of the last 2 and a half decades. Tomik, Distinguished Advokist is our latest tech that we've been trying as a means of combating the insane effectiveness of the Bloom Combo concept, but not a card that holds much value when playing against less evolved standard competitive meta staples.

Tomik, while an interesting piece, actually probably can be worked around well. Sure, some parts are turned off, but you can still just use the value half of a ton of the relevant pieces, the lands aren't affected, squandered resources is fine, and bloom is good too.

I am looking more into layering this into a more defined shell, medium green in particular.

The idea is that cards like Green Sun's Zenith, Summoner's Pact, and to a lesser extent, Force of Vigor are incredibly powerful, but specifically for a list like medium green, they find Biomancer's Familiar and Seedborn Muse, and that allows the list to gain high value in grinding out games against the slower decks. The issue is early game consistency and mana screw/flood. This doesn't necessarily fix the former problem, however certainly helps with both the late game value, simply adding more to the deck's absurdly strong endgame, as well as fixing up the mana screw/flood issues.

Ramunap Excavator is one of the more important value pieces, which with the help of Summoner's Pact and Green Sun's Zenith the deck can really get it going. Adding in Excavator, Bloom, and Squandered Resources is all the combo needs, outside of some important lands.

This means the whole combo and value engines could fit in 3 cards, a strong few cards that adds in a backup wincon, another 2 ways of going mana positive during a storm-style turn, and a value engine that is easily tutorable. Crucible, while nice, isn't as easily tutorable. It will definently be another consideration though.