Notice how the paladin unit frame is faded out and displays a whirlwind because he s not yet inside the instance.
A party with more pets, and some druid has got a debuff I can dispell (here a curse).
Some toon are really hurt.
Here one can see the shaman pets and that the tank (2nd frame) is going to receive 13.9k of overheal.
Playing as a resto-druid. One can see the HoT icons, two role Icons (healer and tank) and the estimated incoming heal on the shaman as a green bar.