Page 166 - Mordenkainen's Tome of Foes Deluxe

HELLFIRE ENGINE
Hellfire engines are semiautonomous bringers of de-
struction. Amnizus and other devilish generals hold
them in reserve until they are needed to repel an incur-
sion by demons or crusading mortals, but occasionally
one of these mechanical and magical hybrids gets loose,
driven berserk by its need to destroy.
Many Forms, One Purpose. Hellfire engines take
many forms, but all of them have one purpose: to
mow down foes in waves. They are incapable of
subtlety or trickery, but their destructive capability
is immense.
Soul Trapping. Mortal creatures slain by hellfire
engines are doomed to join the infernal legions
in mere hours unless powerful magic-wielders in-
tervene on their behalf. The archdukes would like
nothing better than to modify this magic so it works
against demons, too, but that discovery has eluded
them so far.
Constructed Nature. A hellfire engine doesn't re-
quire air, food, drink, or sleep.

HELLFIRE ENGINE space as the hellfire engine. While restrained in this way, the
Huge construct, lawful evil creature, or another creature within 5 feet of it, can make a DC
18 Strength check. On a success, the creature is shunted to an
Armor Class 18 (natural armor) unoccupied space of its choice within 5 feet of the hellfire en-
Hit Points 216 (16dl2 + 112) gine and is no longer restrained.
Speed 40 ft.
Hellfire Weapons. The hellfire engine uses one of the follow-
ing options:
STR DEX CON INT WIS CHA
20 (+5) 16 (+3) 24 (+7) 2 (-4) 10 (+O) l (-5) Bonemelt Sprayer. The hellfire engine spews acidic flame in a
60-foot cone. Each creature in the cone must make a DC 20
Saving Throws Dex +8, Wis +5, Cha +O Dexterity saving throw, taking 11 (2dl0) fire damage plus 18
Damage Resistances cold, psychic; bludgeoning, piercing, and (4d8) acid damage on a failed save, or half as much damage
slashing from nonmagical attacks that aren't silvered on a successful one. Creatures that fail the saving throw are
Damage Immunities fire, poison drenched in burning acid and take 5 (ldlO) fire damage plus
Condition Immunities charmed, deafened, exhaustion, 9 (2d8) acid damage at the end of their turns. An affected
frightened, paralyzed, poisoned, unconscious creature or another creature within 5 feet of it can take an
Senses darkvision 120 ft., passive Perception 10 action to scrape off the burning fuel.
Languages understands Infernal but can't speak Lightning Flail. Melee Weapon Attack: +11 to hit, reach 15 ft.,
Challenge 16 (15,000 XP) one creature. Hit: 18 (3d8 + 5) bludgeoning damage plus
22 (5d8) lightning damage. Up to three other creatures of
Immutable Form. The hellfire engine is immune to any spell or the hellfire engine's choice that it can see within 30 feet of
effect that would alter its form. the target must each make a DC 20 Dexterity saving throw,
taking 22 (5d8) lightning damage on a failed save, or half as
Magic Resistance. The hellfire engine has advantage on saving
much damage on a successful one.
throws against spells and other magical effects.
Thunder Cannon. The hellfire engine targets a point within 120
feet of it that it can see. Each creature within 30 feet of that
A CTIONS
point must make a DC 20 Dexterity saving throw, taking 27
Flesh-Crushing Stride. The hellfire engine moves up to its (5dl0) bludgeoning damage plus 13 (2dl2) thunder damage
speed in a straight line. During this move, it can enter Large or on a failed save, or half as much damage on a successful one.
smaller creatures' spaces. A creature whose space the hellfire If the chosen option kills a creature, the creature's soul rises
engine enters must make a DC 18 Dexterity saving throw. On from the River Styx as a lemure in Avernus in ld4 hours. If the
a successful save, the creature is pushed 5 feet to the nearest creature isn't revived before then, only a wish spell or killing the
space out of the hellfire engine's path. On a failed save, the lemure and casting true resurrection on the creature's original
creature falls prone and takes 28 (8d6) bludgeoning damage. body can restore it to life. Constructs and devils are immune to
If the hellfire engine remains in the prone creature's space, this effect. ..
the creature is also restrained until it's no longer in the same •

CHAPTER 6 I BESTIARY