Useful for all healers on any class, this is the BoL for Not-Templar healers and a pretty handy skill for Templars in certain fights. Use this when you have a player with a healing debuff to prevent additional dmg while healing what you can. I love this skill for steam on HoF second boss and for Stam DPS in general. Some swear by one morph or the other; like always, I suggest you level both, try them, see what you like.
Thank you to Harven for a wonderful little add-on that lets you see different morphs of a skill. Super handy!