Haggabah, Who Plies The Umbral Path

is a legendary troll encountered in the third and final Healing Pool level of. He is the third of the three legendary trolls found there, preceded by and.

Overview
Haggabah is perhaps most notable for his unique mutation, Invisibility. He attacks in melee with his hands.

Melee Combat
Haggabah's possess a unique damage type, umbral, which ignores AV and has no corresponding damage resistance. Thus, each strike Haggabah performs with his hands will do their full damage of, assuming the player does not dodge them. The hands are considered cudgels for the purposes of skills.

Skills
To supplement his hands, Haggabah possesses several cudgel skills including Cudgel Proficiency, Bludgeon, Charging Strike, and Slam. He also has the Charge skill, allowing him to quickly close the distance between him and his targets. Finally, he has the Swimming skill, allowing him to move more quickly through the pools of found within his lair.

Invisibility
Haggabah has a unique mutation known as Invisibility, which prevents the player from being able to see him under normal circumstances. This invisibility prevents the player from talking with or otherwise interacting with him, even if he is non-hostile; the player can still attack him, however, assuming the player can discern his location.

To be able to see and interact with Haggabah, the player must have, (the cybernetic implant), Clairvoyance, or Night Vision (the mutation). The night vision granted by does not work. Haggabah must also be in complete darkness (note that the pools of convalessence within his lair give off light). It is also possible to use Telepathy to pinpoint his location, if you have a general idea of where he might be. Finally, Heightened Hearing and Sense Psychic will allow the player to detect Haggabah and see his location even in the presence of light, but will not permit them to interact with him.

Even if the player has no direct method of revealing Haggabah, his location can be discerned by visual cues, such as the splashing caused by his movements through the convalessence pools.

If the player dominates Haggabah, the Invisibility mutation will not prevent NPC's from detecting them, as all NPCs possess the ability to detect creatures they are hostile to regardless of visibility or other sensory abilities they possess.

Budding
Like the other legendary trolls, Haggabah will begin to bud when the player is within the same zone as him, which will cause him to produce a in an adjacent tile after  rounds. These foals are allied to Haggabah and share his alignments, attacking anything hostile to him. Haggabah will begin to bud again immediately after producing each troll foal; however, he cannot produce more foals if he is surrounded on all sides by creatures or walls, or if there are already 18 troll foals within the current zone.

Unlike Haggabah himself, the foals he produces will not be invisible, and thus can serve as a somewhat reliable indication of his location.

Special Properties
Haggabah possesses a unique "juker" AI type that causes him to occasionally move in a random direction, with a 25% chance of occurring every turn.

Additionally, like the other legendary trolls, Haggabah is capable of holding two-handed weapons in one hand; however, his adumbral hands prevent him from holding anything.

Progressing Past
Haggabah's lair has a small room located at the southwester corner containing, leading further into Bethesda Susa. The room is composed of ; entry is permitted through a golden, unlocked via a. One can always be found within Haggabah's inventory, though such a key can also be obtained in other ways, notably as a reward from village quests. The key can be retrieved by killing Haggabah, or by trading with him if the player's reputation with trolls is sufficiently high, and the player has a method of revealing him.

Entering the room containing the stairs does not necessarily require the player to go through the door; they can also break the walls or circumvent them through other methods, such as phasing through them or teleporting past them. Additionally, creating stairs down using a can allow the player to skip the room entirely.

Tips

 * Haggabah is arguably the most deadly of the trolls in melee combat due to his high damage and ability to stun the player; however, he has no ranged weaponry or abilities to speak of. Assuming the player can discern his location, missile weapons may be of use when fighting him.
 * Coming prepared with one of the aforementioned methods of revealing Haggabah can make the fight much easier, as his invisibility plus his juker AI can make pinpointing his location otherwise very difficult.
 * Combat can be completely avoided if the player's reputation with trolls is high enough; however, the player must have a way to reveal Haggabah in order to trade with him for the key, or they must get through the door through other means.