Hearthpwn

Mulligan for Doomsayer to stall the game until turn 5 or 6, when you complete the quest, and then every turn lets you drop an obscene amount of stats on the board. Oasis Surger and Cenarius are extremely powerful, especially when you can follow up with Flobbidinous Floop. Archmage Vargoth combos extremely well with Nourish, Hidden Oasis, Swipe, and Mark of the Loa (if you can stick him on turn 5 and complete the quest, you can cast Nourish on turn 6, drawing 6 cards and ramping all the way up to 10 with 4 full mana crystals--basically, you win).