Issue with TBN

[Nedkel]

The difference between having +25% HP and reducing damage by 20% is minimal, and let's not talk about how much WAR can heal himself and a party member during Nascent Flash.
And the 15s CD is irrelevant when it comes to planning TBN to make sure it breaks every time.

Its giant.

With 20% hp you have to take damage equivalent of 150/187.5% of your health in order to make the effective health TBN gives upfront.