Greetz guys,
I'm bearer of the mighty Ironfoe and wanted to share my thoughts with you guys. Maybe some of you agree with me or can confirm some mechanics.
First I want to let you know the proc chance feels mediocre to terrible. For example: it seems to be on par with Hand of Justice, which has a 2% chance.
Does it scale with hit chance? Fighting lower level mobs that don't make me miss that much, I get a good amount of procs.
In addition it might have an internal cooldown, because It never chain-proced multiple times, but I got it immediatly after on the next autohit.
An annoying side effect is when using Heroic Strike/Cleave and get a proc, the rage consumption is doubled, but the spell effect is only applied to the first hit.
For a best-in-slot weapon until Ahn Quiraji/Naxxramas I expect a little bit more. Don't get me wrong, it's not bad overall, but not that cookie cutter that I expected.