Team Grand Prix Announced by Wizards of the Coast

This new three-person team format will feature both Sealed Deck and Booster Draft. Day One will be Team Sealed Deck, with each team receiving twelve "Hook" booster packs to build three sealed decks. All cards must be assigned to a player's deck or sideboard during deck construction and cannot be transferred to another player during that tournament. (Players do not share main deck or sideboard cards.) Day Two and playoff will be Team Booster Draft. The rules for three-person Booster Draft are still in development. Read the complete announcement and more details here