Colors that are adjacent in the arrangement on the card back are have complementary strategies.
Azorius
White Blue
Slow and Steady by Mark Rosewater
Designing for Azorius by Mark Rosewater
Daniel Ward's W/U Approach
Top Moments of GP Minneapolis
This deck uses an alternate win condition with Approach of the Second Sun and lots of card draw and a little life gain. It's a very unusual archetype but it finished 10th!
Approach of the Second Sun is a card that refers to the story of Amonkhet, where the two suns aligned between the Bolas horns before the Hour of Devastation. The mystery of what would happen when the second sun approached was baked into dozens of this summer's cards. Now that it's here and things are falling, can the card become dominant for the new year?
Dimir
Blue Black
Pretty Sneaky Sis by Mark Rosewater
Rakdos
Black Red
Hedonism with Attitude by Mark Rosewater
Selesnya
Green White
Group Think by Mark Rosewater
A timely game one All is Dust match five was the only thing that kept this beauty from the perfect 10-0. The Evolution of GW Company🔥 pic.twitter.com/fmy2Z51wpZ
— Todd Stevens (@ToddStevensMTG) September 11, 2017
Gruul
Red Green
Designing for Gruul by Mark Rosewater
Aaaargh!!! by Mark Rosewater
Color Pie Friday: The Philosophy of Red/Green by Sarpadian Empires vol. VIII