Mulligans
Aggro Mulligans
The deck has some weakness against aggro and is mostly reliant on receiving potion of madness or Radiant elemental + PWS for a great start. If you do not get these cards to open with Arfus, a good Barnes, Shellraiser and Pain can keep you alive until you finish the quest or drop the Obsidian Statue.
Midrange Mulligans
Picks as to be adjusted for the different variation in midrange decks, but Radiant + PWS and Potion of madness are usually safe picks. Sometimes keeping Arfus or Barnes can be justified.
Control Mulligans
This deck has multiple value tools to survive the long game vs control, getting of a good barnes, or Arfus can give a great advantage. You can keep PWS with both Cleric and Elemental. Always keep Quest.
Quest priest gets some great buffs in it’s mid-game with Arfus, and some stronger late game with Bone Drake and Obsidian Statue . Obsidian Statue is also huge for the playability of N'Zoth, The Corruptor. Always keep your quest, even vs aggro. Shadow Visions is primarily used to fetch Dragonfire Potion, Shadow Word: Death or copies of the packs from Elise the Trailblazer late-game.
Any questions, critique or suggestions will be much appreciated:)