devtrackers.gg
Like what some of the other comments said, this could probably be abused, and also there is a clear visual 'tell' of flesh wound: person gets a limb chopped off and lives = they will die in a few seconds. If you could use bloodlust to counter that, you wouldn't be able to know what is actually going on and things could get confusing.
That being said, keep the suggestions coming - more perk ideas are always welcome!