Hello everyone and thanks for checking out my deck. With the release of Master Duel it brought back my love for Yu-Gi-Oh as I stopped following the game in 2014~. This is a deck I made that got me to platinum rank in a week. It has some negate, however prefers to go first to get your sychro monsters out. This deck's main objective is to summon Cosmic Blazar Dragon/Shooting Star Dragon/Crystal Wing Synchro Dragon. The best way I found was using the effects of Junk Synchron, Doppelwarrior, and Junk Speeder.
You can use Foolish Burial, One for One, Tuning (Send the top card of you deck the GY), Quickdraw Synchron, or Mathematician to send a Doppelwarrior to the GY for Junk Synchron to special summon. From there you synchro summon Junk Speeder, into Martial Metal Marcher and Armory Arm. Then, you can summon Cosmic Blazar Dragon. If you have non-tuner monsters left or monster reborn I like to go for Stardust Dragon or Crystal Wing Synchro Dragon.
There are still some cards I am on the fence about having in the deck and I hope to find more impactful cards as I continue to play and experiment. That being said here are a few cards I would switch for something else;
-Turbo Booster and Boost Warrior (I like these cards in case you are unable to get a Doppelwarrior to the GY)
-Necroid Synchro (not a great card for opener, but I find it useful to get Shooting Star Dragon out)
-Shard of Greed (two turns is too slow in today's Yu-Gi-Oh I'm learning)
-Martial Metal Marcher (Tatsunoko seems to the popular 3 star synchro tuner, I will test out to see which I prefer),
-Armory Arm ( probably better 4 star synchro monsters out there, my nostalgia for the card keeps it in the deck for me. Also, the extra attack it gives helps deal with decks like Blue-Eyes that have high attack monsters)
-Beelzeus of the Diabolic Dragons (I wanted a 10 star synchro in my extra deck and this seemed like the best one. I have haven't summoned as many times as I'd like to though)
Thanks again for viewing/reading and I would appreciate it if everyone would leave there thoughts or recommendations for this deck. I am still learning about the cards that have come out since I last play Yu-Gi-Oh and am having a lot of fun duelling again. I hope you enjoy this deck or are able to get some ideas for your decks from it.