Waterdeep - Dungeon of the Mad Mage

3l0

APPENDIX A : DUNGEON DENIZENS

This appendix contains information on Halaster Black-

""'-cloak, as well as monsters and NPCs not found in the

Monster Manual. After the Mad Mage, the creatures are

in alphabetical order.

HALASTER BLACKCLOAK

Halaster, the Mad Mage of Undermountain, is the de-

ranged individual behind most of the traps and horrors

found in the great dungeon under Waterdeep. Under-

mountain is his home, an amusement gallery in which

others perform to entertain him.

The Mad Mage knows the ever-changing ways of Un-

dermountain as no one else does, for he is the one who

controls those changes. He prefers to remain unseen,

skulking about invisibly or peering through scrying

sensors that resemble wide-open eyes surrounded by

sparkling motes of Hght.

Halaster's abilities far exceed those of most mortal

wizards. His expertise with magic gates allows him to

travel far and wide to engage in magical research. He

HALASTER BLACKCLOAK

Medium humanoid (human), chaotic evil

Armor Class 14 (17 with mage armor)

Hit Poi nt s 246 (29d8 + 116)

Speed 30 ft.

STR

10 (+0)

DEX

18 (+4)

CO N

18 (+4)

Saving Throws Int +14, Wis +11

INT

24 (+7)

WIS

18 (+4)

Skills Arcana +21, History +21, Perception +11

CHA

18 (+4)

Damage Resist ances fire and l ightning (granted by the blast

scepter; see "Special Equipment" below)

Senses darkvision 120 ft., passive Perception 21

Languages Abyssal, Celestial, Common, Draconic, Dwarvish,

Elvish, Infernal, Undercommon

Challenge 23 (50,000 XP)

Special Equipment. Halaster wears a robe of eyes that lets him

see in al l directions, gives him darkvision out to a range of 120

feet, grants advantage on Wisdom (Perception) checks that rely

on sight, and allows him to see invisible creatures and objects,

as well as int o the Ethereal Plane, out to a range of 120 feet.

Halast er wields a blast scepter (a very rare magic item that

requires attunement). It can be used as an arcane focus. Who-

ever is attuned to the blast scepter gains resistance to fi re and

lightning damage and can, as an action, use it to cast thun-

derwave as a 4th-level spell (save DC 16) without expending a

spell slot.

Halaster also wears a horned ring (a very rare magic item that

requires attunement), which all ows an attuned wearer to ignore

Undermount ain's magical restrictions (see "Alterations t o

Magic," page 10).

Arcane Recovery ( 1/ Day). When he finishes a short rest,

Ha laster recovers all his spell slots of 5th level and lower.

Legendary Resistance (3/Day). If Halaster fails a saving throw,

he can choose to succeed instead.

APPENDIX A I DUNGEON DENlZENS

Rejuvenation. If Halaster d ies in Undermountain, he revives af-

ter ldlO days, wit h all his hit points and any missing body parts

restored. His new body appears in a random safe location in

Undermountain.

Spel/casting. Halaster is a 20th-level spellcaster. H is spellcast-

ing ability is Intelligence (spell save DC 22, +14 to hit with spell

attacks). He can cast disguise self and invisibility at will. He can

cast fly and lightning bolt once each without expending a spell

slot, but can't do so again until he finishes a short or long rest.

Halaster has the following wizard spells prepared:

Cantrips (at w ill): dancing lights, fire bolt, light, mage hand,

prestidigitation

lst level (4 slots): mage armor, magic missile, shield, silent image

2nd level (3 slots): arcane lock, cloud of daggers,

darkvision, knock

3rd level (3 slots): counterspell, dispel magic,firebafl

4th level (3 slot s): confusion, hallucinatory terrain, polymorph

5th level (3 slots): Bigby's hand, geas, wall of force

6th level (2 slots): chain lightning, globe of invulnerability,

programmed illusion

7th level (2 slots):.finger of death, symbol, teleport

8th level (1 slot): maze, mind blank

9th level ( 1 slot): meteor swarm, wish

ACTIONS

Blast Scept er. Halast er uses his blast scepter t o cast thunder-

wave as a 4th-level spell (save DC 16).

LEGENDARY ACTIONS

Halast er can t ake 3 legendary actions, choosing from the op-

tions below. Only one legendary action option can be used at

a time and only at the end of another creature's turn. Halast er

regains spent legendary act ions at t he start of his turn.

Cast Spell. Halaster casts a spell of 3rd level or lower.

Spell Ward (Costs 2 Actions). Halast er expends a spell slot of

4th level or lower and gains 5 temporary hit points per level

of the slot.