Yeah, her L3 melee lifesteal is kind of ridiculous. I played a match today where a Boldur kept on trying to dive me (both of us at full health), and I was able to solo kill him and be at effectively full health afterwards. I knew this particular guy tilted easily, so I made sure to taunt him, and he kept feeding me kills the whole game. Granted, the guy playing Boldur wasn’t a particularly good player (still rank 100+), but it’s still a bit ridiculous.
Her main issues, IMO, are having a ranged homing silence, having such a long wound duration, and having such high melee lifesteal as an option. Take the homing off the silence, reduce her wound duration considerably (like 1s/3s for unscoped/scoped), and significantly reduce her melee lifesteal option. After that, we can start looking into what she does for her team (e.g. make melee players into gods).