"Road Synchron" comes in the Starter Deck, 5D's Starter Deck 2009.
You can find it in the Yusei's grey stardust deck
It can be a good deck. you just need the cards to go with it. Like you need Quilbolt hedgehog, hes a good card to go with a synchron deck. also junk, Nitro, Road, Turbo, Quick, and hyper Synchrons. and then you need cards that help bring them out.
Junk Synchron + Ryko, Lightsworn Hunter = Frozen Fitzgerald Junk Synchron + Darksea Rescue = Armory Arm (eff of rescue *draw 1 card)
You should probably start by buying a theme deck. Then you can purchase booster packs. The cards in the booster packs can be used in your deck.
The bit that lets it substitute for another Synchron, is not an 'effect' and thus cannot be negated. Synchron Explorer does not negate it, nor does it remove the condition that it can only be used in a Synchro summon that specifically requires a Synchron monster. There are other 'conditions' that cannot be negated too, like name changing effects that apply in deck too, maintenance costs, and restrictions like "If you use this effect, the monster cannot attack".
You can find it in the Yusei's grey stardust deck
None - it is a rare in Starstrike Blast.
No booster pack has it, it is a promo card in the Marik Structure Deck.
"Junk Synchron" and "Warrior" are only found in the 5D's Starter Deck.
No, it does not come in any booster pack. It is only available in Structure Deck 1 - Dragon's Roar.
It can be a good deck. you just need the cards to go with it. Like you need Quilbolt hedgehog, hes a good card to go with a synchron deck. also junk, Nitro, Road, Turbo, Quick, and hyper Synchrons. and then you need cards that help bring them out.
get dragons collide structure deck first, then epic dawn booster box. makes a perfect deck
Junk Synchron + Ryko, Lightsworn Hunter = Frozen Fitzgerald Junk Synchron + Darksea Rescue = Armory Arm (eff of rescue *draw 1 card)
Just buy a second structure and a few staple cards online with a fusion ancient gear ultimate golem and geartowns for a total of about $20 and your set.
You should probably start by buying a theme deck. Then you can purchase booster packs. The cards in the booster packs can be used in your deck.
When you buy a certain new deck of Pokemon cards at the store they will also contain a booster credit that can be redeemed online to unlock the use of the deck online. To get a booster credit you need to buy the booster pack (deck) in real life with real money.
The bit that lets it substitute for another Synchron, is not an 'effect' and thus cannot be negated. Synchron Explorer does not negate it, nor does it remove the condition that it can only be used in a Synchro summon that specifically requires a Synchron monster. There are other 'conditions' that cannot be negated too, like name changing effects that apply in deck too, maintenance costs, and restrictions like "If you use this effect, the monster cannot attack".