Mitigation question

[Canadane]

Prime example is the WAR skill NF. So could some one please explain to me how healing equals mitigation?

Well Nascent Flash provides damage reduction on the target.
If isn't usually used to provide self-healing only. Some cases perhaps, but it has a shared cooldown with Inner Release which is the warriors self mitigation.

[Kalise]

Well Nascent Flash provides damage reduction on the target.
If isn't usually used to provide self-healing only. Some cases perhaps, but it has a shared cooldown with Inner Release which is the warriors self mitigation.

I think you mean Raw Intuition...

Also, Nascent Flash is actually often used for self healing instead of Raw Intuition. Since, it's far superior when used correctly and there are no attacks that currently NEED Raw Intuition's mitigation in order to survive them (Given that Reprisal, Rampart, Thrill of Battle, Vengeance and Holmgang exist. To say nothing of outside sources of mitigation like Critlo, Divine Benison or the OT's "Ally" skills...)