Originally Posted by
Shieldarm
It can definitely increase uptime of Shield Wall used that way. That would be pretty strong. It would partly depend on how many Shield Slams you can squeeze off, though. At a 4 minute cooldown, with each doing 4 seconds, and we'll say an average of a SS every 4 seconds (not too unreasonable, if a little low)... Wowhead says 4 procs per minute for the trinket... So, after 2 minutes, you get the CD to 2 minutes. 8 stacks of the debuff pushes Wall to 56 seconds. So you basically get Wall to ALMOST 50% uptime. Obviously able to make up that difference with Anger Management, were you to use it.
As for the 2300 armor, unlikely. Wowhead says 1.5 procs a minute, so it should be ~40s icd. We'll even use the Mythic version at 930, which is 2642 armor. That averages to 660.5 armor, which is less than even the lowest of DMC:I, and it can be unreliable when it procs, whereas DMC will always provide armor.