This deck is basically Junk Speeder turbo, trying to cut out as many garnets as possible, along with adding as many playable cards as possible. I love this deck, and know the ins and outs of it. This so far has been the most competitive list I have attempted to make, after lots of testing. The thing about Synchrons is that they lack playable cards that replace themselves and you have to open certain combinations of cards to be able to play and combo, so this list aims to remedy that with the support that we have at the moment.
The deck will still open kind of unplayable hands, but thats what the Halq-Auroradon line is for.
DO NOT GO FOR THIS PLAY IF YOU DO NOT HAVE A SPELL /TRAP TO SET. This will result in Tzolkin Pass.
Combo: Turbo out speeder, any way you can and summon it to the extra monster zone, If you open any of your Synchron Garnets, and Junk connector, resolve junk connector to bring the garnet back, whether that be a Hyper Synchron, Fleur, and so on. Summon Quickdraw, Hyper, Junk, Fleur, and Cyberse Synchrons from your deck with Speeder. Then contact your Quickdraw Synchron and Junk Speeder into Tzolkin (summon it to one of the main monster zones). Then set a card from your hand to trigger Tzolkin, then summon Power Tool Dragon with Tzolkin's effect to the extra monster zone. Search for a copy of Living fossil from deck with Power tool. Then make Crystal Wing Synchro Dragon using Cyberse Synchron and Power Tool Dragon, summon it in the extra monster zone.
After that, use living fossil to bring back a level 2 monster from the graveyard (the one you used to summon Speeder) and Make Garden Rose Maiden with Junk Synchron and the Level 2. Then Synchro summon Dawn Dragster using Fleur Synchron and Garden Rose Maiden. After that, Make Geomathmech Final Sigma using Hyper Synchron and Crystal Wing Synchro Dragon, and summon it to the extra monster zone. Then you can activate the graveyard effect of Garden Rose Maiden to bring back Crystal Wing. You end on a Board of Geomathmech Final Sigma in the EMZ, a Crystal Wing for a monster negate, F.A. Dawn Dragster for a Spell negate, and Tzolkin.
For the Halq Line, just make Halq with any tuner plus any monster or any 2 tuners. When you summon Halq, use its effect to summon Deskbot 001 from deck, Then Link them into Mecha Phantom Beast Auroradon. Then summon 3 tokens, this will trigger the Deskbot in grave, summon it using its effect. Then summon Herald of The Arc Light using one Mecha Phantom Beast Token and the Deskbot. After that activate the second effect of Auroradon to destroy the two remaining tokens to summon Mecha Phantom Beast Coltwing from deck. On summon, the Coltwing will summon 2 more LVL3 tokens. This will trigger the effect of Deskbot 001 again, summon it again. After you, Synchro Summon Power Tool Dragon using 2 tokens and the Deskbot. After that search for a copy of Living Fossil from deck. Then activate the Living fossil to bring back the Deskbot one more time. Now you synchro summon Borreload Savage Dragon using the Deskbot and Power Tool. Equip the Halq from graveyard to the Savage Dragon.