Quote Originally Posted by MauvaisOeil View Post
IB's duration is 5sec.

It will only outweight TBN if you take more than 100% of your max HP during theses 5 seconds.

What is godly, is IB + other cooldowns, since war has quite many.
Ah thank you for the Clarification.

You reminded me of one thing i forgot to mention in my previous post though; Using any other cooldown with TBN will reduce its chances of breaking depending on which content you're doing, and even AST/SCH shields will exasperate the issue. This is honestly bad job design if one skill on the same job clashes with itself, WAR/PLD has no such issues.