So I got this idea from freefallerexe's post about bringing back Murmur for 2016. For those who don't know what murmur is, Bungie added a fusion rifle during the first expansion (murmur) that allowed you to change between two elements, solar and arc. This also changed how the gun behaved. My idea is that Bungie should introduce an exotic weapon (it can be any type of gun, not just a fusion rifle) that allows us to change its element similar to how murmur worked, but with all three element types. If you like this, bump so it can be spread around. If you don't, comment what ideas you'd like to see on future exotics. Thank you for your time.