I was looking at the "new" PAC and reread EE.

I didn't realize it said the power dealt no damage. So if I ever roll a crit miss using this power I now know to not take any crit miss damage.

I knew it was this way for Mind Control and recall when Incap was changed a while back but it never dawned on me that EE was in this category, too.

Was this complete common knowledge? EE gets rarely used, overall, so I guess it just never came up...

I think it is common knowledge. I remember it was being talked about in one of the big threads when the new rules and PAC came out.

So wait... Since it Deals no Damage does that mean the attacker doesn't take Mystics Damage?

It does cause you to take Mystics damage. It is no no damage attack that still deals damage. Or something like that. It's how it's been ruled.

Are critical hits still affected? IIRC critical hits increase the damage dealt to each character hit by 1.
I remember that MC dealt no damage as to prevent Enhancement, Critical Hit and Miss damage.
Incapacitate now states a locked damage value of zero, so Crit Hits and Misses would cause damage, but still no Enhancement or Perplex.
Multi-target EE has been a mainstay on my teams since IC, but it's been through more changes than the Shield TA.

Incapacitate is also a no damage attack nowadays, so it will not be effected by crits.
EE has a sentence at the end that says that a critical hit deals an extra damage to the hit characters. If it wasn't there, EE would not cause critical hit damage.

It's pretty common knowledge, but it's also pretty commonly unknown!

Here is the current version of it from the PAC: