Glaive's out! Unfortunately for the moment you can only get it by a. putting down $10 in platinum or b. being on during a ? alert that drops the blueprint (It's not available in the market). The amount of backlash makes me wonder if they might go back on that choice.
In any case Skul and I dropped the platinum for it and we've been having a fair bit of fun with it. The charge attack, as we predited, throws it, and it ricochets off of enemies and environments (Ricochets off enemies seem random, but according to Skul they're more or less predictable) before returning to you. The throw does a fair bit of damage, too - and you can get headshots with it.