Spirit Quest Priest

This deck has been a blast to play. You will fall behind in the early game as you do not have any cheap minions to play off the bat. Use Penance, Forbidden Words, and Shadow Word: Death to deal with any early threats. The goal is to get to turn 5 and then use Mass Hysteria if you need to clear the board or use one of the five cost minions in the deck Convincing Infiltrator, Sandhoof Waterbearer, and Zilliax. Most often your opponent will focus on killing that minion on their next turn. Turn 6 you can play Psychopomp and Spirit of the Dead if you have them. Khartut Defender or one of the 5 cost minions can also be played. The late game plays will all be based on what is needed. You will get plenty of healing from Khartut Defender, Sandhoof Waterbearer, and Zilliax.

The games I played against aggro could have you down to 10 HP by the time your heals start coming in. Once you complete the quest, then it is game over. Just buff your taunts up huge and use the resurrection items/Bwonsamdi, the Dead to build up your board. King Phaoris is a fun play when you have at least 2 of your 9 cost spells in your hand when you play him.

With this deck you will most likely have big comeback games where you are on the brink of defeat only to turn it around and defeat your opponent with ease.