I have nothing against catchphrases per se. In fact, I began this year of blogging with this very subject ("Okay; clear my calendar." ). Beyond that, I spend the better part of July looking for my own signature phrase, before adopting one from Starman as a birthday gift to myself.
Real people do, in fact, have characteristic turns of phrase, and using them is part of what make one person (or character) sound different than another. This is particularly important in a non-aural medium, where we cannot "hear" voices and must rely on their phraseology to identify them. Here's a good example of a story that takes advantage of that "flaw" in the comic book medium.
Clearly, this scene could not work this way on television or radio; you would hear Lois's voice and it would be immediately obvious that it wasn't Perry, so there would be no surprise. In comics, all unseen Lois has to do is "borrow" Perry's typical phraseology and we can't tell the difference between them.
So I'm no foe of catchphrases, and am a big fan of signature epithets. Particular Aquaman's. You'd be surprised what an impression you can make on people with a hearty and well-timed exclamation of "Great Gastropods!" I'm pretty sure that's what aced my college interview for me.
But, as I mentioned in my original post on this subject., I detest "battlecries", a monstrously unnatural form of catchphrase almost exclusive to Marvel. Oh, DC has an occasional embarrassing anomaly like "Hawk-a-a!" or "Long Live the Legion!" But, on the whole, it's a Marvel thing to shout "It's clobberin' time!" or "Flame on!" or "Avengers assemble!" If you've ever watched Who Wants to Be A Superhero, you know that its most embarrassing moments are when artificial-hipster Stan Lee shouts "Excelsior!" in his heavy nyewyawker accent at the contestants or, even worse, makes them say it, and they all visibly cringe in mortification. Even people bold enough to parade around in spandex and capes unselfconsciously can't bear the dorkiness of Stan's "battlecry".
Dazzler's battlecry is "go for it". I mean, really. Was "hey!" already taken? Worst of all, "go for it" isn't something you say to yourself, it's something you say to other people.
So whenever Dazzler rallies to battle, she sounds like she's auditioning for a Nike commerical or High School Musical IX. Even "Time to shine!" , "It's show time!" , or "Eat light, suckers!" would have served her better.
Really, it's not Dazzler's fault; it's almost as if the Marvel staff went out of their way to make her lame.