Quote Originally Posted by Arienal View Post
And thats where we hit the issue. SNIP.
AOE isn't the "point" of Geirskogul, it's just bonus free damage if you line the mobs/adds up properly. It's not used for the 6+ enemy speedpulls, but while single targeting down <= 3-4 mobs, throwing Geirskogul out while doing your normal rotation you get a bunch of free DPS on the others. Also, you can't really maintain HT -> RoT, DT Spam very long before TP runs dry. Usually in a big pull I'm forced to use the AoE rotation, burn Invig, do it some more and then ~200 TP left or so I go back to single target rotation w/BotD Geirskogul's helping put out as much as possible.

Basically, you should be looking at Geirskogul as a 200 potency oGCD with a cooldown of about 20s in high-uptime fights and a 30s cooldown on "erratic" fights that does bonus damage to groups.