Heal Firebrand provides a large variety of boons, healing and utility.
This build produces permanent Quickness, Regeneration and Fury. It is possible to drop down to ~70% Boon Duration and still keep permanent Quickness and Regeneration.
Aside from the boons, this build heals a lot. You heal by dodging, by giving Aegis, from your Symbols, utilities, tomes and more. You provide constant healing and have the option to provide burst healing when required.
This build should always be used as a secondary healer with a Druid carrying out the traditional main healer role to produce Might and take offensive squad buffs.