With a nasty burst DPS, this build can do some crazy damage. Key word being: can. This build is inconsistent, and consequently is considered a bit of a gamble. However, with 4 multishot at max spool, full primary merciless bonuses and galvanised savvy, it's as close to consistent as it can be without sacrificing raw numbers. Can you be more practical? definately, but there's something lovely about seeing a 1.2M burst DPS prediction from the left hand list, don't you think? If you don't want/have a riven, swap it out for any of these in descending order of usefulness (pick your favourite): [Primed Cleanse Grineer] (or other primed faction mod), [Shrapnel Shot] or [Chilling Reload].