This page covers a DPS-focused strategy for Helya 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.
To defeat Helya and release Odyn from her curse, the raid will have to overcome her Three Stage fight. Helya has a lot of moving parts, and a lot of debuffs to keep track of. Groups will need to be coordinated to soak the appropriate abilities and to move when necessary. Personal responsibility is a must when determining whether you can survive a soak or not.
March 24, 2017 (Trial of Valor) - Guides reviewed for patch 7.2, no major updates made.
January 21, 2017 (Trial of Valor) - Added mythic information and video to the Guarm healer guide.
January 20, 2017 (Trial of Valor) - Added mythic Odyn video and mythic information to healer guide.
January 15, 2017 (Trial of Valor) - Added videos for heroic Guarm and Helya.
January 09, 2017 (Trial of Valor) - Reviewed for patch 7.1.5.
January 06, 2017 (Trial of Valor) - Added Heroic Odyn video to healer guide.
December 25, 2016 (Trial of Valor) - Added Trial of Valor screenshots to the image slider.
November 21, 2016 (Trial of Valor) - The Healer guides for Odyn and Guarm received significant updates now that I've seen the fights on Heroic.
November 20, 2016 (Trial of Valor) - Added DBM settings to Helya healer guide.
November 18, 2016 (Trial of Valor) - Added DBM settings to Guarm healer guide.