Earlier this week I cleared almost all of ToS with a 10man group... until we got to Kil'jaeden. We ended up inviting a third healer and a couple of more dps and killed him next pull. I figured they just made the last boss mechanically overloaded, compared to the rest of the fights, like they did with Gul'dan in Nighthold. But Tonight while doing a 20man Kil'jaeden I noticed that only 5 people were targeted with Bursting Dreadflame... Why's that a problem? Because on 10man, 5 people were also targeted with Bursting Dreadflame. Seems like this would be an ability where the number of targets would scale based on the raids size.