That's right, what will your toon say when you tap the F10 key.
There's the boring, but standard 'Charge!'
I had an Arachnos Widow say, 'Taste the power of Arachnos!'
Super Fire Dragon, my wp/fire tank, would say, 'I think they're over there.'
Necrophillia, my necromancy/dark MM, would playfully warn, ' I get the dead bodies'
And yes, The Tattered Avenger, my MA/Dark scrapper did actually say, 'They shall smell my wrath'
Did you have any interesting or clever battlecry?