Hello guys im new to 50-59 bracket i was gonna move my 39 rogue upto 50s and was wondering if i can put one of those new blacksmith eternal belt buckles on the nigh invulnerability belts?
Yes, you can use the belt buckle. You just need to have a higher level toon apply it to the unbound belt, then equip it on your twink. You can apply the gem's yourself.