Hearthpwn

Very modular deck. (Only Shrink Ray and Alexstrasza are essentional.)

Deck aim to outheal face damage long enought to set-up lethal.

Possible replacements for other cards are:

Highly recommand: Crystalsmith Kangor, Aldor Peacekeeper, Eadric the Pure, Nozari

Still good: Seal of Light, Uther of the Ebon Blade, Gluttonous Ooze, Leeroy Jenkins, Platebreaker

Anything with good heal: Guardian of Kings, Ragnaros, Lightlord, Deranged Doctor, Ancestral Guardian

If you don't have Alex, you can switch to any other win condition like Uther Exodia or just Elysiana Fatique.

For game i just add few tips... Shrink (or Eadric) is the card which let you outheal 7 dmg per turn, so know when to use it. Time Out! help with start, where you want give enemy enought time to fill the board for Shrink , to maximalize potentional. Card which change enemy 8/8 dragon to attack only for 1 help on start or after forced early Shrink too.

After you have prepared board you just outhealing long enought to use Divine Favour and at this point you basicaly won.

On lethal i recommand to have some way to get rid of all enemy taunts and some aditional damage to face. (Platebreaker+Conscecration for example.)