Use the many starters in the deck to assemble Naturia Molcricket and Naturia Camellia to create control boards with the toolbox of Naturia monsters, supplemented by the Therion engine. Extra Deck is customizable.
Updated the list and giving a more indepth explanation of my card choices
3 Naturia Molcricket and 3 Naturia Camellia - The core of the deck. Both of these cards sets up the other and are the best normal summons in the deck. Sets up your graveyard to disrupt your opponents plays. Most games begin by getting both of these cards into rotation. Camellia is also a tutor for any naturia cards by sending Naturia Sacred Tree and Molcricket can help you catch up going second.
3 Lonefire Blossom - Extra copies of Camellia. Can also be used to start your Therion engine.
2 Naturia Marron - By far the weakest starter in the deck but sometimes Marron send Molcricket is all you got. Other than that it recycles your naturias for grind games.
1 One for One - Summons Molcricket without taking your normal summon, lets you end your first turn on boards that aren't just Camellia + Regulus
1 Foolish Burial - Sets up graveyard, sends Molcricket or a therion in a pinch
3 Foolish Burial Goods - Essentially ROTA here. Sends sacred tree to search any Naturia Card
3 Therions' "Lily" Borea - You probably know why this is here. Search the field spell to get Regulus for an omni. Also can send Sacred Trees you've drawn to search.
1 Therions' "King" Regulus - Big stats, omni negate, level 8 for Dingirsu
1 Therions' Ring, The Colosseum Saucer - Searches your Regulus, pretty great in a grind game as well. Bump this and Regulus up to 2 if you want
Naturia Tool Box
2 Naturia Horneedle - This is your main source of disruption. In tandem with Camellia and Antjaw can be triggered quite a few times.
1 Naturia Sunflower - Monster negate. Pretty strong if you have Camellia, otherwise the cost is steep
1 Naturia Antjaw - Ammo for your tribute effects, could get away with running more of these but i didn't feel it was necessary
1 Naturia Rosewhip - Floodgate summonable off of Halq. Can be used to completely shut off your opponents Spell/Traps
1 Naturia Vein - Spell/trap negate. Same deal as Sunflower but can be used with Rosewhip to completely shut off Spell/Traps
These next 3 are only in the deck because their level is convenient or are pretty good extenders
1 Naturia Hydrangea - having a level 5 is nice to summon off of Molcricket if you need a synchro monster quickly. can summon itself.
1 Naturia Cosmobeet - Just wanted a level 2 tuner
1 Naturia Ladybug - The best of these three by far, I use it in my turn one combos often as link material for Seraphim Papillon. Seraphim, Beast, Regulus and Molcricket is a pretty doable setup
3 Naturia Spring Breeze - Really good spell. Is by far the best extender in the deck and can be used on your opponents turn to drop synchros. Not a single once per turn on this card.
3 Naturia Sacred Tree - Had this at 2 but it proved to be a very good card to send for costs. Its non-search effect is sometime relevant as well.
1 Called by the Grave - Getting handtrapped can sometimes turn your entire deck off. Honestly probably should cut some of the worse naturias to run a Crossout Designator package.
3 Ash Blossom & Joyous Spring - i just picked the first hand trap to come to mind.
Extra
Naturia Exterio - Probably never gonna summon this but its better than Gaiastrio
Baronne De Fleur - Its the best synchro monster in the game
Borreload Savage Dragon - The second best synchro in the game, although i often find myself in situations where i haven't summoned a link monster to equip to it
Naturia Barkion - Doesn't come up very often, its really here just to have another naturia name for ladybug so any of the other synchros would do this is just the least bad of them excluding beast
Naturia Beast - incredibly good and very easy to summon. often a piece in my better setups
Herald of the Arc Light - Its another omni
Sacred Tree Beast, Hyperyton - Big negate monster, my Strenae target
Dingirsu, The Orcust of the Evening Star - Cleans up the board on the crack back.
Strenae the Rikka Queen - Recycles your Camellias and Lonefires. tribute it to aromaseraphy jasmine to summon Hyperyton
Meliae of the Trees - never summoned this but i'd rather have it then not
Accesscode Talker - You know why this is here
Knightmare Unicorn - Mostly to climb into accesscode
Papillon Seraphim - Proactive way to get Molcricket back on the board. Sometimes if i already have a molcricket in rotation i'll send a Horneedle to the graveyard to summon with this
Aromaseraphy Jasmine - Not sold on this TBH, might go with Crossrose Dragon instead, much easier to summon but needs another monster in the extra as a target.
Crystron Halqifibrax - Theoretically has some pretty powerful setups, i haven't practiced them yet so i have no idea what to do here. Could always put a Jet Synchron in the deck
Cards im considering
Naturia Mantis - Might be a sideboard card for Floo but the cost kind of doesn't jive with the deck
Naturia Ragweed - Might be good if you're running more handtraps than i am and you know your opponent is running draw spells.
Naturia Stinkbug - Could potentially make you unkillable in a grind game
Crossrose Dragon - alternative to Jasmine. Needs another extradeck slot which isn't a big problem, you can do anything with the extra deck.
Periallis, Empress of Blossoms - My Crossrose target of choice, summons Borea from the grave
I:P Masquerena - You create a ton of material on your opponents turn
Apollousa - I:P Target, but i dont feel like you can summon it early enough for it to do much
Retaliating "C" - Decent handtrap, relevant typing
Contact "C" - for the Realiating search
I've considered insect stuff but i dont think theres enough synergy there, Resonance Insect has potential but i don't think theres enough Doom Dozer targets in this deck.
The other Naturia spell traps dont have Naturia in the name making them unsearchable so i don't think they're consistent enough to justify. The field spell search is okay but you dont really want the naturias in hand unless you're running mantis.
No draw spells, didn't seem necessary, the new support makes the deck Super consistent
All in all I think the new support is exactly what the deck needed. Naturia has always had a lack of enablers for their low key busted effects but Molcricket and Camellia do exactly what the deck wants. The strengths of the deck lie in being very, very consistent and adaptable but its still not very capable of power plays. I think you can win games with it, its just not easy due to nonlinear setups and having to know which Naturias are relevant in matchups. I'm very excited to play more of this deck, it might end up being my main.