The Green knightFollow

I was wonder if anyone has his new loc in the new frontiers. I led a raid on him in the old frontiers and he drops a really cool looking two handed sword forest green with cloudy effects but i sold it 2 years ago and i would like to get it again. any info on what the sword is called or where i can find the green kinght would be great. tobad i forgot what the sword was called i can't find info on it anywhere must be very rare.