Is the Brell's Hammer Ornament's Hand of Holy Vengeance III proc impactful for 110+ Knights? I feel like the proc adjusts to your level. My theory: Brell's Hammer Ornament + Soul of the Grandmaster is a feasible defensive augmentation kit.
I use Blood Draining Spike instead. The small group heal is negligible and can be had via other means (Blunted Blade + Healing Light, Sincere Penitence) for when it matters. A true healing proc like those from TBL+ challenger achievements or Ball of Baleful Bile would maximize your healing posture, if that's your goal.