They said level 84 twink, which means they will have access to the MoP enchants like Dancing Steel & Windsong which have a ilvl requirement of 372 to work. For the best damage you can get a pair of the BoE daggers such as this one ->
http://www.wowhead.com/item=87508/lh...ng-ribspreader though they likely won't be cheap as they are pretty rare.
I am unsure if using 2x Dancing Steel or 1 + 1 Windsong though as i'm not sure if it will make DS proc/double proc more often or not. Pretty sure faster weapons make procs happen more often and they can proc off pretty much any ability. Hell I've had windsong proc when popping my bubble.