This item is acquired in-game. See its sources below.
A Rare Miscellaneous, item level 1.
First seen in build 12.0.7.68887 (Midnight (patch 12.0.7)).
Right Click to summon and dismiss this companion.
Spell effects bound to this item, from first-party game data.
The client names Nightmare Treant as the reward of 1 achievement.
Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
Nightmare Treant uses icon file 1357816, which 5 other items also use. The 5 closest by item ID:
Lasher Seed ID 140458 · Miscellaneous "It's the color of dried blood, and prickly."Shala'nir Sproutling ID 141291 · Gem · item level 50Oakheart's Gnarled Root ID 137306 · Armor · item level 50Pulsating Thorn ID 191568 · Quest "Even detached, the piece of corrupted plant seems intent on stabbing you."Gorebarb's Pincers ID 249406 · Quest "A set of sharp, curving pincers, harvested from Gorebarb."Blizzard numbers items as they are created, so the named items next to ID 140761 (140755 to 140772) were usually added in the same batch as Nightmare Treant: the same quest line, zone, vendor or reward set.
Life-Like Magistrix Doll ID 140755 · Miscellaneous · item level 3
Baby's Doll ID 140756 · Miscellaneous · item level 3
Melandrus' Spellstone ID 140757 · Quest "Well cared for, but rarely used."
Arluin's Gift ID 140758 · Quest "Wrapped with surprising care."
Libram of Truth ID 140760 · Miscellaneous
Skull of the Executed ID 140762 · Quest "A trophy taken from the fiercest champions of the Broken Isles."
Light's Heart ID 140763 · Quest
Grimoire of the First Necrolyte ID 140764 · Consumable "A tome detailing the collected spells of Sataiel, the first necrolyte."
Pile of Bits and Bones ID 140767 · Miscellaneous
Tel'andu Seed ID 140772 · Quest "Has an earthy aroma."The raw ItemSparse values for item 140761 in the current client build.
Read from the World of Warcraft client build files: Item, ItemSparse, Lock, Holidays, AreaTable and CollectableSourceVendor.
The tooltips of the spells linked here read as follows. Nightmare Treant: "Right Click to summon and dismiss this companion."
TheWoWDB