I ran Heroic Oculus to finish some achievements. I ended up getting "Amber Void", "Ruby Void", "Emerald Void". "Make it Count" and "Heroic: The Oculus" on my priest as she hadn't done the instance before.
The void achievements are easy at level 100, you just need to tag the boss and then kill him while not mounted on a drake.
My guild also ended up getting "More Fun With Friends" by completing 100 scenarios in a guild group.