Two things:
a) if someone isnt in combo (hence u faded and they are no longer targeting you) the rules apply. So if they try to use a skill (without combo) then the resist rules apply
b) those runes double (i think) the odds that you will resist a down/stun/knock back compared to ordinary resist intension.
To some people this is worth it (and personally i would find it very helpful in war and im trying to take a quick dash to heal up)
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