Here is a PTR log of of a 5:26 wipe on Mythic Hellfire Council with 3 throughput healers using the HFC Leech trinket (Unstable Felshadow Emulsion): https://www.warcraftlogs.com/reports/7H9kjV1GKLbADwfZ#fight=16&type=healing&ability=143924 Only 3 of the 5 healers were using the trinket, yet combined those 3 trinkets did about 40 million healing, beating every single healer, including the 102k hps mistweaver monk. Thats right: 3 of these trinkets is equivalent to adding an additional chart-topping healer to the raid. This trinket will absolutely be BiS for every HoT healer, and once we have multiple of them it will have an enormous and noticeable impact on raid health stability. Side note: dear god the MW healing. Set bonuses 15% of his total HPS... Second side note: dear god the lifebloom healing.