Endwalker Warrior Looks Great

[Argyle_Darkheart]

I could be reading the tooltips wrong but they seem to do the same thing except like you said, NF works on allies. Why not just make it 1 button and work on allies or self? Both provide 10% dmg reduction, life leech on weaponskills and a barrier.

Nascent Flash heals both the user and the target, whereas Bloodwhetting only affects the user.

So, in scenarios where both tanks are taking damage (like the first two phases of TEA, for example), the most powerful option would be to have the WAR use Nascent Flash and the other tank use targeted TBN, targeted HoC, or Intervention (however, Holy Sheltron is superior to baseline Intervention, so you may still just use Bloodwhetting with a PLD co-tank).