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This is a deck based around the new Arctype Steelswarm which focus around tribute summoning and shut down high level Special Summoned monsters, Synchro Monsters, and Ritual Monsters. The idea looked interesting so I thought I would give it a shot. Now this deck is still a working progress but hopefully it would be ready when they come to America. FOR THE SWARM!!
-I am currently unsure about using Mystic Tomato, I may switch him out for a couple Steelswarm Needles. Most decks seem to focus on using speed to summon their ace monster ASAP, this deck is made to counter that and gain field control relatively easily. The Steelswarm archetype does have a few hindrances but if used right they can be to your advantage. Please help with the deck. Is there anything I can do to make it better?
"Grave of the Super Ancient Organism" is a nice card, but it's meant for builds that abuse "Genesoid" and/or "Cell", not "Scout". "Scout" is like "Treeborn Frog" in that you either build your Deck around him or don't. I wouldn't recommend him; he doesn't work with "Enemy Controller", he can't be made into "Formula Synchron", and his Summon is blocked by "Royal Oppression". If you do want to use him, remove "Dark Illusion", "Ultimate Offering", "Hercules", and "Caller". Spam "Moth" and "Girastag". "Keep "Infestation Wave" and "First Step Towards Infestation" for End Phase shenanigans. Add "Armageddon Knight"/"Dark Grepher" to mill "Scout" quickly. Stick Gorz and "Trageodia" in there while you're at it.
If you want to run a "Cell" build, max out "Recurring Nightmare", "Ultimate Offering", and "Mantis", and add more "Gatekeeper". Throw in "Seven Tools of the Bandit" or somesuch to deal with Traps. You can do massive damage by looping "Mantis" into "Gatekeeper" into "Mantis" into "Gatekeeper". "Dark Illusion" is good for blocking "Dimensional Prison" as well as "Effect Veiler".
As for your current build:
MEH: You need more Spell/Trap support to deal with opposing threats. "First Step Towards Infestation" doesn't fit this build. There are very few situations in which it would be better than "Forbidden Lance", aside from the whole cantrip thing. "Infestation Wave" has the same problem. "Sangan" is not as good as "Mystic Tomato" unless you can keep it alive for long enough to use as Tribute (I think you can't). "Hercules" is for "Genesoid" builds; use "Dark Necrofear" and DAD instead.
YAY: Use "Allure of Darkness". Given your GotSAO, "Moth" will generally be used for bouncing Exceed Monsters; run more of it and Side "Needle". Instead of "Double Summon", run another "Ultimate Offering". Run either lots of Spell/Trap destruction or some "Trap Stun", because this Deck loses advantage fast if the Summons are negated.