Voidblade users can be kited and CCd pretty easily. The void blade bugs out half the time and has terrible hit tracking. Any nerf to it would kill it completely. It has counter play, but it sounds like the people you watched mindless clumped and tried to out tank a void blade without trying to stop him from swinging. The life leech is stronger when you can cleave, since you are leecehing off multiple targets.
My issue is it’s impossible to kill a guy so as soon as they pull out the VoidBlade I just say nope and move on to the next guy. Lol. How are you supposed to play against VoidBlade?
Do you have a warhammer? It completely shuts down void blade. Or ice gauntlet snare and kite, bow kite, if you use GA, catch them in a grav well then charge a heavy then maelstrom = dead VB user