Okay, this is an interesting question that has come up... it's probably in a FAQ, but I haven't checked them in a while.

How does PW interact with the Mystics TA? I know a few people that say that PW ignores all TAs, so Mystics can't retaliate. I say that Mystics takes effect after the attack has been resolved, thus anyone using PW on a Mystic takes a click. On a similar note, TAs like Crusade or Suicide Squad (if a friendly was KO'ed due to the PW) would take effect.

So which is the way it works?

And they would be correct. From the Pulse Wave description:

PULSE WAVE (optional): Give this character a ranged combat action. Reduce its range value by half. All powers, team abilities, and feats possessed by characters within range of this attack are ignored until the action has been resolved. Wild cards using this power may use the team ability of a friendly character within range of this attack. Draw lines...

And from the DC TA list:

Mystics: When this character takes damage from an attack, the attacker takes 1 damage. This damage is not an attack and cannot be reduced.

The attack is part of the action. The attack occurs during the action. The TA does not function again until the action is over. No TA during the action = no activation of the TA when it is attacked and takes damage as a result of the action.


[/quote]On a similar note, TAs like Crusade or Suicide Squad (if a friendly was KO'ed due to the PW) would take effect.[/quote]

Crusade wouldn't be affected at all, since it only ever activates when the attacker rolls doubles, and PW doesn't ignore its attacker's own powers, TAs, or feats.

As for other TAs that activate after the action, the general errata says:

Powers, abilities, and feats that take effect as a result of a character being KOd (such as the Fantastic Four and Suicide Squad team abilities and the Lazarus Pit feat card) are not ignored by Pulse Wave. These effects take place after the attack is resolved.