User blog comment:Rulebladeraysawa/Why trinity force isnt "core" on GP/@comment-4434378-20120901021501

The thing about TF is that you can build it as your sole DPS item. IE on its own is pretty bland, and its hard to get IE + PD early enough to be relevant without missing out on picking up your tankiness stuff. Whereas you finish TF around the time that fights are requiring tanky stats. But its whatever works for you.