Halfway through the DTK spoilers, we can see the markets reacting to the new toys that will be printed in the new set. So. just like every week, just in time for FNM, I present you the cards that will be the talk of the town tonight.
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When Dragons of Tarkir is released we have a Standard environment with morph, megamorph and manifest. A lot of stuff will be played facedown, and many flippings will occur. And with Mastery of the Unseen you have the extra benefit of gaining life for each creature you have. A strong strategy in a facedown meta.
Mastery of the Unseen sees (mostly sideboard) play in 7 Standard archetypes, but you can really expect to face it in Boros and Abzan Midrange decks. Interesting to know is that because of Mastery of the Unseen mirror matches between decks that run it can get pretty grindy. Unprepared players might face a 0-0-1 score. So don't forget to pack outs in your sideboard to get rid of your opponent's Mastery of the Unseen.
Master of Waves is back! And with that Mono-blue devotion might be back as well! And why? Well because of this guy from Dragons of Tarkir:

The synergy between these cards is obvious and pretty powerful. Especially when you also include Thassa, God of the Sea. Check out this thread on mtgsalvation to get an idea what's brewing.
I have featured Scion of the Ur-Dragon before, and this week he is a winner again. It just keeps going up, and a $18,95 price tag for a 5-colored creature that sees no competitive play is pretty steep! But there is also real demand for the card. Everyone that considers building a dragon deck for EDH or casual must stop and consider this card.
But be careful! Scion of the Ur-Dragon does not work with come into play abilities! The dragon you put into your graveyard is copied, but the ETB does not trigger. Luckily, in Dragons of Tarkir many dragons are spoiled with an ability that triggers when you attack.
Scion of the Ur-Dragon cannot sustain it's huge price tag over a long period of time. When new sets are printed dragons will be out of fashion. Prices will dwindle and players that want to invest in decks with new toys, printed in future sets can easily trade away their Scion of the Ur-Dragons for a nice price.
Other interesting movers:
Want to help me out? Pitch me a tweet when you see something interesting @MTGPeter