IT'S GOING TO GET A LITTLE LOUD: Opposing characters within 6 squares can't use Super Senses. Opposing characters within 6 squares can't use Impervious, Invincible, or Invulnerability but can use Toughness instead. When Banshee hits a character that can't use a power due to this trait, increase damage dealt to that character by 1.

If Banshee Pulse Waves with multiple characters in range of the pulse wave, would characters with Impervious, Invincible, Invulnerability and or Super Senses take 2 damage instead of the normal 1 damage?

I don't believe so, as it's not 'due to this trait' it's 'due to Pulse Wave'.

Yes. Even though the powers are ignored during Pulse Wave, the targets still can't use them. "Ignore" and "can't use" are different game terms.

This is correct, but the reason is not
This is incorrect. When using Pulse Wave and targeting multiple characters your damage value becomes 1 and is locked. Sense it is locked at 1 it cannot be increased by his trait.

His trait isn't increasing the damage value but the damage dealt.

His trait increases damage dealt, not his damage value, like a critical hit.

Thank you. Yet again, that is why I should look first instead of always assuming I'm right

But no seriously I should have looked again instead of just going by my memory which clearly was wrong here.

Thanks for clearing this up guys.