Originally Posted by
Xorn
Looking at wowprogress, 62% of 25 man guilds that have cleared the first boss have also cleared Horridon, whereas for 10 man it's about 32%. This to me suggests some sort of difficulty imbalance, most likely caused by raid composition and availability of interrupt and dispel mechanics.
We ran with three heals (priest, shammy, druid) and we had a hard time on the second door, I think due to dispels and possibly interrupts. I think that perhaps 2 healing might be the way to go as our dps was good overall, but perhaps adding another will cut down on raid damage.