Topic Deathwing Achievement
This achievement is "right place & right time". He literally just strafes the zone burning the ground. You have to get caught by his breath to get it. You can't go stand in the fire after he's passed. The event literally lasts all of 10-15 seconds. You just have to get lucky sadly.
Edited by Firekatkid on 12/12/10 12:15 PM (PST)
You do not have to have been there, actually. I got to Burning Steppes today, 12/12, at 3:10 and he had just passed through as every last thing was aflame. I ran through the fire for a while and got the achievement.
Never even got to see the big guy. D: