Don't do it except you like the style of the weapons. You may look at the relics of SB, HW and RR either before you decide. All of them are grindy as hell but if you are looking for cool looking skins you should give it a try. There are videos on YT where you can watch the evolution of the relics. That one for example: https://www.youtube.com/watch?v=PVo9_e8O97g