Since you're given a 0/10 minion the classic Priest cheese of Inner Fire and Divine Spirit is appropriate here. Your objective is to buff Dorothee with Inner Fire as soon as possible and start going face. You can't afford to be greedy waiting for a super wombo combo since The Crone will use Twisting Nether on turn 8 effectively ending the game. Once you've buffed Dorothee, keeping her alive is of course paramount and this deck provides ample tools to do so: Flash Heal, Light of the Naaru, Lightwell, Darkshire Alchemist, and Temple Enforcer.
If you're able to get out Holy Champion or Lightwarden from Light of the Naaru it can help accelerate the clock towards your victory. Copying Dorothee with Faceless Shambler or Faceless Manipulator is another way to to push even larger amounts of damage towards the win.
Should you be close to lethal, but need to stall on turn 7, Loatheb can buy you that extra turn to close out the game.
Suggestions to help improve the deck provided by Sepheriel89
Videos of the Deck Provided by kiwiinbacon & Fur0
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