This is THE control deck of the format. It's been around since the beginning of the game and was the best deck for many many years. The core of The Deck is blue and white but it splashes the other three colors to get access to all of the formats most powerful and restricted cards. It then combines those powerful cards with the formats most efficient answers in the form of Counterspell, Disenchant and Swords to Plowshares.
Another very important card is Jayemdae Tome which lets The Deck draw the answers it needs to survive. As wincons the deck usually use cards like Mishra's Factory, Serra Angel, The Hive or something similar.