Grimoire of Mana Burn (Rank 4)
Reworked classic item 16387 · Class books & guides · Wowhead
Changed from classic
Vanilla Plus
Grimoire of Mana Burn (Rank 4)
Binds when picked up
Unique
Classes: Warlock
Requires Level 56
Use: Teaches Felhunter Mana Burn (Rank 4).
Classic
Grimoire of Tainted Blood (Rank 4)
Binds when picked up
Unique
Classes: Warlock
Requires Level 56
Use: Teaches Felhunter Tainted Blood (Rank 4).
Highlighted lines differ. Classic = WoW Classic data from Wowhead.
Source
No known drop source yet.