Demonology Warlock Midnight 12.1 Guide

Patch 12.1 Last Updated: 11th Aug, 2026
Sjeletyven Author Avatar
Sjeletyven

Introduction

My name is Sjele. I play mostly warlock as long as it is good and when it is not I cry as I reroll to whatever is. I was a raider in Method for multiple expansions and have since moved into a role as DPS analyst, always aiming to extract every little bit from whatever warlock spec I'm currently playing, with demonology being my favourite.

Demonology Warlock Overview

Demonology is a fairly simple builder/spender where you build resources and spend them on summoning demons. An easy way to think about it is that every demon is a damage over time effect or a “DoT”, but instead of the effect being on a target it is a demon on the ground.

Demonology is very good at doing sustained single target and cleave as long as the enemies are stacked.

Forced Movement during cooldowns and spread cleave are clear weaknesses of the spec.

In my opinion, demonology is extremely fun to play and once you get into it it feels very natural in terms of the “flow” of the gameplay.

What has changed

Patch 12.1 Changes for Demonology Warlock

General Warlock Changes:

Demonology Changes

The tl;dr of all of this is this:

  • Soul Leech bugs have been fixed
  • Drain Life Healing Increased
  • Diabolist Cleave is Nerfed
  • Single target specific abilities and talents like Shadow Bolt/Demonbolt and Gloomhound have been buffed significantly.