LF incendiary or corrosive SOULRENDER w/ phasecast 250 ASE full auto

Hey all. New here, but i cannot find a level 57 Soulrender with the 250 phasecast. want either incendiary or corrosive, but would take radiation. needs to be fully automatic. i have a huge locker of giant 250 ASE and 300 ASE weapons to trade. lots of great shields and grenades. I farm a lot so if i dont have what you need, i can porbably find it fast. just not this one! HELP!!!