First, I’m not a big fan of the “four-color cards I like” decks. I like more streamlined themes and decks, where not-so-obvious cards shine. What we mostly got here was mostly just good stuff. Sure, there’s synergies, but those come after you have cards you would still play in many decks without them.
First, a couple of deck techs they made:
Christian Calcano was featured a couple of times, so I think his deck is pretty well known by now.
Its a blue-black aristocrats deck and can kill seemingly out of nowhere.
Sam Black is one of the better known deckbuilders nowadays and here’s a good one. I think it had the best win percentage of all the decks in the tournament, even though it didn’t make it to the top 8. I was thinking about something similar, but I don’t think I would have ever arrived to this (especially Elvish Visionary and Planar Outburst, which actually seems pretty out of place):
BR Dragons by Hao-Shan Huang (8-2)
Okay, so this is just a new version of a deck I really like from a couple of PTs back. Still, this stood out from the decklists as pretty unique. Draconic Roar is probably pretty strong right now, as everyone is playing at least Jace, Vryn’s Prodigy and it doesn’t even have to kill the target to do damage to a player, so you can fire them off at that Siege Rhino. Damaging planeswalkers “for free” also seems strong.
Big Red by Eduardo Lopes (7-2-1)
Many of the Atarka Red decks had a sideboard plan of bringing in some bigger stuff. This deck just foregoes that and moves into the more midrangish space for all the games. I would at least think about playing Ire Shaman in lieu of Abbot of Keral Keep in this one.
BG Ramp by Victoriano Lim (7-3)
Doesn’t seem like a deck that would work to me, but apparently it did. At least somewhat. It does seem a bit fragile against Abzan Charm and it doesn’t seem to hold that well against the aggressive red decks, but I guess those weren’t really that popular after all.
BR Aggro by Tomoharu Saito (7-3)
In some ways I’m a bit disappointed with this deck, because it lacks many of the cards one would hope to see here, like Forerunner of Slaughter, and where are the two-drops anyhow… Still, my favorite color combination with a nice aggressive stance. What’s not to like?