What do your new group talents do?

[Oryx]

This is an open thread to discuss new group talents that we all got in Legion.  In particular, what new tricks do you have that could be helpful in a tough dungeon or raid situation?  (And, if you have an Artifact ability that would be relevant, what does it do?)  Skip the individual DPS/HPS boosters here; what can boost the group?

I'll start:
Resto shamans have a new Ancestral Protection talent, which is a 30-second long proactive battle rez.  If anybody dies during its duration, they can reincarnate with 20% health/mana.  It's on a five minute timer.  (One caveat: it cannot rez players that died due to Massive Damage, which is 2x your total health). There's already some strategies that involve using this to sacrifice a character to mitigate some bad effect.

We also have Wind Rush Totem, which is a 15-second long, 10-yard radius, 60% speed buff.  This is the same as Stampeding Roar but it lasts almost twice as long!  Two minute cooldown.

[jabadue]

I guess that caveat means that Ancestral Protection won't work on Xott?

Holy Paladin Talents:
1. Choice between Repentance (single target - cc) and Blinding Light (multi target - cc).
2. Aura Mastery (AM) is my cool down. Choice between Devotion Aura (20% damage reduction within 10 yards split among those affected, AM all affected players gain full reduction) and Aura of Mercy (Heal 3 people within 10 yards 15% of spell power per second, AM all allies within 10 yes healed at 100% of spell power). 
3. Sanctified Wrath - Avenging Wrath (increases your healing done by 35% for 20 seconds, and also increases your critical strike chance by 20% for the same duration. It is very useful during periods of high sustained damage.) 50% longer and cool down on Holy Shock reduced by 50%.
5. Tyr's Deliverance (Artifact)Releases the Light within The Silver Hand for 10 sec, healing an injured ally within 15 yds for [ 150% of Spell Power ] every 1 sec.

[Nganga]

Feral Druid has nothing whatsoever, except that I can now charm woodland creatures to keep us amused. Stampeding roar is unchanged; bears have a talent to enlarge the radius of effect.

Enhancement Shaman has Stormlash, which has a chance to grant up to 2 raid members added Nature damage to attacks (Talent: +1 person, +35% more Nature damage). Can also talent for Wind Rush Totem or Rainfall (free healing rain for 7 people, potential duration of 30 sec). Can talent for aoe hex totem (10 sec duration, 8yd effect), which replaces the longer-duration single-target hex.

Frost DK can talent for a 4 sec conal disorient.

WW Monk passively increases movement speed to all allies within 10 yards by 10%.

Arms Warrior has 3min cd Commanding Shout (+15% max health to all allies in 30yd radius for 10 sec)

Havoc DH (dps spec) has Darkness: 8 sec 20% chance for allies to avoid all damage from attacks. 8 yd radius.

[Tempestmoon]

Prot Warrior has Inspiring Presence as a talent, which grants 3% Leech to everyone in the aura.

Side note on Ancestral Protection: I wonder if the Shadow Priest Self-Kill talent counts as "Massive Damage"

[Dentik]

Resto Druids can now choose to take Inner Peace, which reduces the cooldown of tranquility to 2 min. (normally 3 minutes).  Useful in fights where there is heavy raidwide damage coming in at regular 2 minute intervals.