Unstable Felshadow Emulsion (Drops from Xhul’horac)
The Unstable Felshadow Emulsion’s Leech effect (called Shadowfel Infusion) is only triggered from effective healing done to injured players, but any heal will trigger it. Even Eternal Flame heals count, and will constantly refresh Shadowfel Infusion with every tick (though the bonus Leech decreases each time). This functions very much like our Mastery, except instead of our heals granting absorb shields, they grant what are essentially Heal-over-Time effects.
On a test run through Raid Finder on the PTR, Leech was roughly 2-3% of the overall raid healing, about the same amount as my Beacon of Light. Not too shabby! And since Shadowfel Infusion scales with the amount of healing done, it will be most effective when healers are pumping out their strongest heals to cope with heavy damage, which is exactly when we’ll need the free extra healing help.
One cautionary note: Shadowfel Infusion healing does not count toward your healing numbers, but rather is credited as Leech healing by each individual player instead. Remember, your individual numbers shouldn’t matter as long as the boss gets defeated. This is a timeless philosophy and we’ve all heard it before, but with this trinket on the way I think it’s worth reiterating. However, if you are on a raid team where you have to constantly battle to maintain your raid spot, you should be prepared to explain to your Healing Lead just why your numbers seem lower than normal. Similarly, if you possess this trinket and are applying to a new guild, make sure they know when they look at your logs that some of your healing oomph is being diverted to others.