-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
If "Gem-Knight Fusion" is in your GY, you can also use up to 2 non-Rock "Gem-Knight" monsters from your Deck and/or Extra Deck as material
Whats not to love about it
Supreme King Z-ARC X DARK Level 12 [ Dragon / FusionPendulumEffect ] ATK 4000 DEF 4000 P Scale 1 Fusion, Synchro, and Xyz Monsters your opponent controls cannot activate their effects
(Quick Effect): You can send 1 card from your hand or field to the GY, then target 1 face-up card your opponent controls
But what about its volume, I hear absolutely no one ask