Force Leech: Kel'Sara will cast Force Leech on the tank at some points. This is announced to the raid in red text. This lasts 20 seconds. It reduces all healing received by 99% and "leeches" health off the target to heal Kel'Sara if the target is healed.
Does anyone have any thoughts on how Watchman Zen will play into this mechanic? Would we have to respec combat for this fight to be viable?