Draft:Demon Emperor

Omega 0.90.4

D Demon Emperor
Form	Unique HellWell ruler
Attacks	5 lunges: 0–199 physical each before absorption, plus strength-10 life drain; 5 ripostes
Special abilities	Fear and spellcasting; faulty low-HP summoning; no separate missile attack
Base level	10
HP	3,000
Hit	200
Defense	100
Action interval	2 ticks; lower is faster
Kill experience	20,000, when death is in sight
Generation	HellWell Volcano, final level
Carried items	Amulet of the Planes and 0–6 random items
Immunities	Fire, cold, electricity, poison, acid, fear, sleep, negative energy, other magic, theft, gaze, infection
Remains	Demon Emperor's Regalia; guaranteed on normal death
Remains use	Legion succession; no alchemy
Traits Hostile Initially invisible Intangible; can pass through walls
Reference	minit.h in Omega 0.90.4, line 295

The Demon Emperor is the unique ruler encountered on the final level of HellWell Volcano. His Regalia is the Legion's succession trophy, while his carried Amulet of the Planes is a separate travel reward.

Encounter

He starts hostile, invisible and intangible, and can move through walls. Ordinary construction makes him awake 99% of the time; if still asleep, he wakes when the player comes within twenty squares. His five-lunge sequence first deals normal physical damage on each landed hit, then attempts a strength-ten life drain. His innate immunities include fire, cold, electricity, poison, acid, fear, sleep, negative energy, other magic, theft, gaze and infection; normal physical damage is not included.

He has no working separate missile attack: the attack selected at distance points to an ordinary melee sequence that only executes when adjacent. His spellcasting can still threaten a distant character, so this does not make an open ranged duel safe.

His demonic special action can use fear or spellcasting. At 2-49 HP it also attempts to summon help, but that branch fails to select a defined helper for his level in 0.90.4. Its result is undefined; do not rely on a predictable pair of reinforcements or a stable low-health exploit.

Death, Regalia and amulet

Normal death drops his carried possessions, creates the Demon Emperor's Regalia and records volcano completion. An unoffended Oracle sends a message asking the player to return.

The Holy Hand-Grenade of Antioch triggers that death procedure but then clears the square's ground items, including the dropped amulet and Regalia. It can satisfy the death event while destroying the Legion's needed trophy; stealing the amulet beforehand preserves only that already-acquired item.

A Colonel above the incumbent Commandant's recorded character level can return the Regalia to the Legion. The Regalia is consumed, and promotion grants regeneration, 20,000 Au and two current and maximum Strength and Constitution. Neither merely killing the Emperor nor carrying his amulet substitutes for that delivery.

The Amulet of the Planes is his fixed initial possession. It can be taken as normal dropped loot after a kill; the Regalia is generated as remains and is not an object to pickpocket from the living Emperor.

Strategy

Account for invisibility and life drain as well as direct damage. His lack of physical immunity allows suitable weapon attacks, while many elemental approaches are resisted. Victrix and the mace of disruption have special destruction effects against creatures with spirit melee, which includes the Emperor.

Demonblade instead recognizes his demonic special action and banishes him. That removes him without the normal death procedure, so it forfeits the normal Regalia, dropped amulet and completion event. It is an escape tactic, not an equivalent quest kill.

The volcano's cavern-style bottom can generate him again after a dungeon rebuild despite the completion flag; room and maze bottoms check the flag. Do not confuse this generation defect with reliable persistence of a defeated encounter.