After coming out swinging last Friday, the Legendary Dragon Decksrelease made a bigger impact than some predicted in our last Market Watch.

Four days later, that set's still having a profound effect on the TCGplayerMarketplace. The current kings of the secondary market were back on topthis week - Pot of Desires and Solemn Strike – but four of the Top 10 werestill placed there by the LEDD launch.

Meanwhile we saw a few responses to recent Regional action and trends fromYCS Guadalajara this past weekend, and at least one surge of sales thatseems to be looking ahead to new cards from Circuit Break.

And so we embark upon another Market Watch column. If this series is new toyou, a quick recap: every Monday and Friday we count down the Top 10bestsellers in the TCG by sheer volume of cards sold. That means rarity andcard value aren't a factor; we're going off the number of cards moved.

That's cool because it gives you perspective on sales trends that areusually impossible to spot if you're just looking for price spikes. Whenthousands of players are picking up key commons for new strategies, orniche tech picks to tackle big decks, that information can be tremendouslyuseful for you as a collector, speculator, or tournament player.

So let's get into it! Here are the Top 10 bestselling cards this week, fromMonday to Friday.

#10: Marshalling Field

The F.A. theme gets new support in Circuit Break, and it's been adeck-to-watch in the minds of some players for a while now. The F.A. can doimpressive things with Marshalling Field, even though it can be a riskybrick draw, and it looks like a lot of players – and maybe speculators –may have decided to pick up copies this week.

Is Marshalling Field used for anything else? Let me know down in theComments if you think there's something else going on with this one.

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#9: Storming Mirror Force

Storming Mirror Force saw some Regional and YCS success this past weekend;apparently enough to drive it to the Number 9 position. A non-targeting,non-destroying mass removal option is attractive in a number of situations,and "Pendulums freaking everywhere" is one of those cases. With StormingMirror Force just getting a budget reprint in LEDD, it's an attractivepickup for anyone who didn't have their playset.

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#8: Duelist Alliance

Speaking of cards that benefitted from a Legendary Dragon Decksreprint, Duelist Alliance is now available to budget players, making thetop deck in competition much more accessible. It's no surprise to see athree-of must-run in that kind of strategy selling this well.

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#7: Astrograph Sorcerer

Pendulum Magicians: still winning tournaments.

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#6: Performapal Odd-Eyes Dissolver

The sudden demand for Performapal Odd-Eyes Dissolver is more interesting.On one hand, Odd-Eyes Arc Pendulum Dragon may be generating more interestin Performapal Odd-Eyes Dissolver and Odd-Eyes decks in general. But thatdeck's unproven so far in tournaments; are Pendulum Magician playersinterested in this for some reason? Did someone run PerformapalGatlinghoul? Or is casual Odd-Eyes interest really enough to kick off abuying frenzy.

It's a weird situation no matter the cause.

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#5: Dark Magician the Dragon Knight

Almost surprisingly, the only new LEDD card that disappeared from the Top10 was Chimeratech Megafleet Dragon. Dark Magician the Dragon Knight –almost inarguably a much more casual card – continued to sell so well thatit took the Number 5 spot. That's likely a mix of hardcore nostalgia andactual competitive hope for Dark Magician decks.

At the same time, we do tend to see more sales patterns suggesting casualbuying trends during the week, whereas competitive trends kick in earlierand generally show more impact over the weekend. A massive number of buysfrom more casual players – and vendors looking to cater to them – wouldexplain a lot of the action in this week's Top 10.

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#4: Odd-Eyes Arc Pendulum Dragon

Case in point: Odd-Eyes Arc Pendulum Dragon. The sheer popularity of thiscard over the past four days might be enough to explain the demand forPerformapal Odd-Eyes Dissolver.

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#3: Illusion Magician' rel="https://yugioh.tcgplayer.com/db/WP-CH.asp?CN=Apprentice Illusion Magician">Apprentice Illusion Magician

Meanwhile, the number one pull from Legendary Dragon Deckscontinued to lead the pack. Illusion Magician' rel="https://yugioh.tcgplayer.com/db/WP-CH.asp?CN=Apprentice Illusion Magician">Apprentice Illusion Magician was a massivemoney card in its original SHONEN JUMP printing, and it sits at a Venndiagram intersection between Dark Magician nostalgia, competitivepotential, and sheer waifu appeal. It's a recipe that might keep ApprenticeIllusion Magician in the Top 10 for weeks, minus the initial sales periodwhen Circuit Break is released.

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#2: Pot of Desires

Nothing is slowing down Pot of Desires. It's largely treated as a must-runin competition right now, it's another former money card turned budgetpull, and demand for it has remained high despite all the people that havepicked up their copies. I'm really not sure how long that demand's going tolast, but it could easily wind up being a matter of months rather thanweeks at this point.

#1: Solemn Strike

And finally, Solemn Strike's still a go-to trap card in currentcompetition; nothing that happened at YCS Guadalajara or in Regionalcompetition changed that over the weekend. It's still available for underfive bucks too, and it's still in massive supply on TCGplayer; until thatsupply dips we're likely bound to see sustained demand.

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That's it for this week! Circuit Break Sneak Peeks start tomorrow,but the new cards won't be available for pre-sale in the TCGplayerMarketplace until mid-week. That means we'll only begin to see themcreeping into the Market Watch Top 10 on Friday, but that may give us earlyinsight into the biggest cards from the set – and player response to newcompetitive opportunities.

What are YOUR bets for the top sellers in Circuit Break? Since we rank ourTop 10's by sheer volume of cards sold, some of the obvious Secret Rarepicks may not actually be in big enough supply to make an immediate,visible impact.

Let me know your predictions down in the Comments, and best of luck at YOURSneak Peeks!

-Jason Grabher-Meyer