I use this weakaura for when I'm tanking keys. It's useful so you don't move out of people's AoE damaging spells (and lose damage on mobs) and have your DPS hate you for it. Also useful for tracking things like the duration of Ring of Peace, Treants, Binding Shot, and Ursol's Vortex. Currently I'm tracking the following:
- Solar Beam
- Force of Nature
- Ursol's Vortex
- Frozen Orb
- Blizzard
- Ring of Peace
- Earthquake
- Flamestrike/Flame Patch
- Rain of Fire
- Death and Decay
- Binding Shot
- Wild Spirits
- Ashen Hollow
Thanks to Radsrad for the inspiration.