• Essence Infused Mushroom
• Item Level 97Disenchants into:
  [Small Prismatic Shard]: 1 (99.5%)
  [Nexus Crystal]: 1 (0.5%)
• Binds when picked up
• Trinket
• Equip: Restores 200 health when you kill a target that gives experience or honor. This effect cannot occur more than once every 10 seconds.
• Sell Price: 1 3 7

Source

This item is a quest reward from  [65D] Stalk the Stalker^ω τ ϖ.

External links

• Battle.net (EU)
• Wowhead
• Thottbot
• WoWDB