Heroic: Crypt of Forgotten Kings

The bonus objective for this heroic scenario is to kill [npc=61707] within 3 minutes of getting to that room. The time starts seconds after you kill the two quillen pathing back and forth. Once you start to head into the room, you can go left or right, with a bunch of smaller sha spawning from the center of a void pool. Don't kill the thing in the center, as you need it to continue spawning the mini sha.

Once the time starts don't bother killing the packs, and run up, tag the [npc=61707], and head back down to the lower platform between the two spawning sha pools. The key to beating the bonus objective is to make sure you consistently have 20 stacks of [spell=129025] (which lasts for 30 seconds) while running out of [spell=120215] and not standing in [spell=120824]. Killing the smaller sha gives a stack of [spell=129025], so aoe them down. Doing this will also get you the achievement Fight Anger with Anger.

Good luck.

Practically impossible to solo for a <=100 caster now that Blizzard has added a 111 elite (Maragor) who blocks the door to the lower level. Miss, miss, miss, miss! Invited a hunter friend and we were able to kill him together within a few minutes.