Hey guys, hope this video is helpful for you, you don't need millions to kill Galvek, or even high range, I did it. Keep in mind you will die a lot and you will spend a lot of money on the 100k gear back thingy, so be ready to lose 1-2M~ Like I did, I lost 2m+.
By the way I have tried every gear possible, melee, magic, range with blowpipe - nothing worked, this is the best tactic.
Song:
https://www.youtube.com/watch?v=VaiHTvifGt0&index=27&list=PLvW6BGoZcqf7eaHdoj0OAqjK-G7CR53oW