Superior Sigil of Blood no longer working
The sigil does not work on my greatsword either. I have ~40% crit and I never see the healing number (when under 100% hp) during any dungeon runs, nor do I see the lifesteal damage in the combat log either.
If they ever get around to fixing this, they should also probably fix all the other sigils/runes. Many are broken, or have had incorrect tooltips since launch.