Shattering Quake: 15 sec cooldown
Causes your Earth Totem to emit a shockwave in a 10 yard radius. Stunning all enemy targets for 2 seconds and reducing all friendly party- and raidmember's damage taken by 3% for 30 seconds within 50 yards. (Does not stack with Renewed Hope - http://www.wowhead.com/?spell=57472, or vigilance, or BoSanc)
Y'know, Fire nova also has pve uses. Just an aoe stun totem is useless for pve.
And this all shamans just some additional pve uses.