For Competitive EDH With the usual disclaimer that none of these precons are really built with cEDH in mind, Id say Sultai Arisen has the most new cards with potential for competitive success
Since it goes to the bottom of your library when you use the extra turn effect , River Song lets you draw it immediately during the extra turn you just created
If you do choose to go wide, then bring the pain with Commisar Severine Raine, who also gives you some handy card advantage for having all of those tokens
The most commonly seen are the red and green
Here are the rest of my two-color lists for you to check out: Top Ten R/G Top Ten U/W Top Ten U/B Top Ten R/B Top Ten W/G Top Ten U/G Top Ten U/R Top Ten B/W Top Ten B/G 1 Of the approximately 115 cards, I have not played Battlegate Mimic, Firesong and Sunspeaker, Foundry Champion, Martial Glory, Scourge of the Nobilis, Suleiman's Legacy, and War Flare.