User blog comment:Crazy sam10/Origin weapon menu icons found in game files/@comment-174.71.106.228-20130822212411/@comment-5557418-20130822213157

And then it appears the second one is fire and the third one is water. To me, the fourth one looks like some kind of earth element. But here is where I think the elemental theories on each map comes in, as theorized on YouTube. TranZit resembles fire = the second staff. Die Rise resembles air, which is something that couldn't really fit in. MotD is water, possibly electricity = the 1st/3rd staff. And Buried represents Earth, the fourth one.