Post nerf – Boomsday OTK Quest Priest

Survive with the great amount of healing while dealing constant damage with Twilight's Call and Abomination. Make sure to get at least a The coin  from glided gargoyle to combo with Prophet Velen for two 10 damage Mind Blast in a single turn.

You can also melt them down with Shadowreaper Anduin/Alexstrasza , then perform the Velen combo.

You can replace Zola the Gorgon for a Youthful Brewmaster if you don’t have her, the goal is to get a copy/back into your hand  Amara, warden of hope so you get a ton of health.

Archbishop Benedictus can also be replaced, but he’s there as a safe fatigue plan if you are facing a heavy healing deck such as Control Mage.

Prophet Velen is there for the combo element, you can play quest without him, but then I’d recommend getting rid of the mind blast plan cards.

Shadowreaper Anduin  and Alexstrasza are just too good to be replaced, even though you could swap Alex for Ysera, it’s just not the same.