This page covers a DPS-focused strategy for Guarm in Normal and Heroic Trial of Valor. While it's tailored for DPS, other roles may also find the information useful. The information below is based on the live dungeon journal as well as available information from the PTR. Once the raid goes live, this guide will be updated. If you have any suggestions or feedback, you can leave a comment below or tweet @VirendraDG.
Guarm's mechanics all require precise positioning and raid awareness. He has more one-shot mechanics than other bosses, and on top of that has a strict 4 minute enrage timer. This fight is only one phase.
January 21, 2017 - Added mythic information and video to the Guarm healer guide.
January 20, 2017 - Added mythic Odyn video and mythic information to healer guide.
January 15, 2017 - Added videos for heroic Guarm and Helya.
January 9, 2017 - Reviewed for patch 7.1.5.
January 6, 2017 - Added Heroic Odyn video to healer guide.
December 25, 2016 - Added Trial of Valor screenshots to the image slider.
November 21, 2016 - The Healer guides for Odyn and Guarm received significant updates now that I've seen the fights on Heroic.
November 20, 2016 - Added DBM settings to Helya healer guide.
November 18, 2016 - Added DBM settings to Guarm healer guide.
November 16, 2016 - Added DBM settings to Odyn healer guide.