About 'Nul' comba and scrambus..

[Tectona]

I heard they disrupt those buff/debuff ability so you can't use it in the nul's aura range.

and I know they erase the channeling-buff ability like hysteria and exalted blade.

but I never fought against them with those non-channeling buff warframes. 

question is, are they gonna erase the buff that is already applied?

like chroma's vex armor and mirage's hall of mirrors?

[Guest]

i dont know technical details about warframe, i only know how to kill them in every situation i meet them =:P

[Manyc]

Yes, if a scrambler disables X ability, it will forbid you to use it while in range and dispel it if it's already on.

Like if you're invisible as Loki, you'll lose it and become visible while unable to turn invisible again while you're in his range.

Advise: focus on his helmet, it's really easy to pop it up even if he's hard to kill, turning him into a regular (still strong) enemy without special abilities. Meaning he won't disable his abilities. I think he can put it back again after a while if you don't kill him, but I can't confirm this part atm.