This item is acquired in-game. See its sources below.
A Rare Miscellaneous, item level 45, binds when picked up.
First seen in build 12.0.7.68887 (Midnight (patch 12.0.7)).
Read from the World of Warcraft client build files.
Blizzard numbers items as they are created, so the named items next to ID 187889 (187884 to 187894) were usually added in the same batch as Unstable Agitant: the same quest line, zone, vendor or reward set.
Mark of the Twilight Runestag ID 187884 · Miscellaneous · item level 60
Honeycombed Lattice ID 187885 · Miscellaneous · item level 45 "A rare proto-material"
Technique: Mark of the Gloomstalker Dredbat ID 187886 · Recipe · item level 50 "Teaches you how to craft a Mark of the Gloomstalker Dredbat."
Mark of the Gloomstalker Dredbat ID 187887 · Miscellaneous · item level 60
Mark of the Shimmering Ardenmoth ID 187888 · Miscellaneous · item level 60
Anima-Charged Yolk ID 187890 · Miscellaneous · item level 45 "A rare proto-material"
Empyrean Essence ID 187891 · Miscellaneous · item level 45 "A rare proto-material"
Incorporeal Sand ID 187892 · Miscellaneous · item level 45 "A rare proto-material"
Volatile Precursor ID 187893 · Miscellaneous · item level 45 "A rare proto-material"
Energized Firmament ID 187894 · Miscellaneous · item level 45 "A rare proto-material"The raw ItemSparse values for item 187889 in the current client build.
Read from the World of Warcraft client build files: Item, ItemSparse, Lock, Holidays, AreaTable and CollectableSourceVendor.
TheWoWDB