Which bosses may drop an Umbral Item?

Question

I wish to know which bosses has obtained an Umbral item, one of those is lady tenebris hold the umbral spellbook, who can be found at the old masonry part of forgotten knowledge quest, which is interesting from a lore-wise point of view, so were nice to know which other bosses share this peculiarity, if possible, add the content which these bosses belong to, maybe some of those belong to the same quest/area~

Answer 1

From what I could research, there are only 3 bosses besides from the Gaz'Haragoth, that drops umbral items (honestly I thought that only Gaz dropped these items):

The Last Lore Keeper - who drops Crude Umbral Hammer and belongs to the Forgotten Knowledge Quest. (Final Boss)

The Source Of Corruption - who drops Crude Umbral Slayer & Umbral Slayer it belongs to the Cults of Tibia Quest. (Final Boss)

Lady Tenebris - Crude Umbral Spellbook & Umbral Spellbook, who also belongs to the Forgotten Knowledge Quest. (Mini boss)

and of course...

Gaz'Haragoth who drops: Crude Umbral Axe, Crude Umbral Blade, Crude Umbral Bow, Crude Umbral Chopper, Crude Umbral Crossbow, Crude Umbral Hammer, Crude Umbral Mace, Crude Umbral Slayer, Crude Umbral Spellbook, Umbral Blade, Umbral Bow, Umbral Chopper, Umbral Crossbow, Umbral Hammer, Umbral Mace, Umbral Slayer, Umbral Spellbook, Umbral Master Axe, Umbral Master Bow, Umbral Master Chopper, Umbral Master Crossbow, Umbral Master Hammer, Umbral Master Mace, Umbral Master Slayer, Umbral Master Spellbook, Umbral Masterblade.

Source: https://www.tibiawiki.com.br/wiki/Gaz%27Haragoth

"Gaz'haragoth is a Demon Prince who was once in charge of overseeing Roshamuul, until the explosion of the Dream Catcher mutated him into his current form.

After a world breaks Roshamuul's wall, Gaz'haragoth is found on top of the mountain at the center of the island, and will remain there until it's defeated. Upon defeat, Gaz'haragoth is cast to the Roshamuul Prison lowest levels, where it will be imprisoned in a secure room. Even so, eventually he gathers considerable strength and can be fought again by brave warriors.

Before he appears, the following message is broadcast in white text to all players of the world he spawns in:

Gaz'haragoth will shatter your dreams in a barrage of nightmares!"

Source: https://tibia.fandom.com/wiki/Gaz%27haragoth

Hope this helps you and clarify some of your questioins, happy new year!

Answer 2

•  Gaz'haragoth

Crude Umbral Axe

Crude Umbral Slayer

Crude Umbral Mace

Crude Umbral Chopper

Crude Umbral Bow

Crude Umbral Hammer

Crude Umbral Blade

Crude Umbra Crossbow

Crude Umbral Spellbook

Umbral Axe

Umbral Slayer

Umbral Mace

Umbral Chopper

Umbral Bow

Umbral Hammer

Umbral Blade

Umbral Crossbow

Umbral Spellbook

Umbral Master Axe

Umbral Master Slayer

Umbral Master Mace

Umbral Master Chopper

Umbral Master Bow

Umbral Master Hammer

Umbral Master Bade

Umbral Master Crossbow

Umbral Master Spellbook

•  Lady Tenebris from Forgotten Knowledge Quest

Crude Umbral Spellbook

Umbral Spellbook

•  The Last Lore Keeper from Forgotten Knowledge Quest}

Umbral Hammer

•  The Source of Corruption from Cults of Tibia Quest

Crude Umbral Slayer

Umbral Slayer

Comments

so far 3  final boss and 1 minor boss? Interesting. I knew I was missing some ty, still i will await a bit more ik these are the known so far but i think that something is missing yet.

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good answer! very complete!