Hearthpwn

Put Hakkar, the Soulflayer in a mill Druid with two Dreampetal Florists and the Twig of the World Tree. Burn through your entire deck and then play King Togwaggle and either a discounted copy of this card or refresh your mana crystals to play this card at full cost and Innervate/Naturalize it. Because you naturalize it on your turn, this casts the first Corrupted Blood in their deck on YOUR turn, leaving two corrupted blood in their deck and dealing 1 fatigue to them. On their turn, their natural draw draws the first Corrupted Blood in their deck, dealing 3 damage and shuffling 2 copies into their deck, leaving them with 3 copies--this ensures that the draw chain IS INFINITE.

If this catches on, it could be really scary and difficult for many decks to deal with. Some decks can survive against mill druid, but this combo would kill any opponent, at any life/armor total, no matter what secrets they had in play (even if they had an Ice Block in wild).