Page 199 - Mordenkainen's Tome of Foes Deluxe

ELDER ELEMENTALS

On their native planes, elementals sweep across the
weird and tempestuous landscape. Some possess
greater power, gained by feeding on their lesser kin and
adding the essence of creatures they have devoured to
their own until they become something extraordinary.
When summoned, these elder elementals manifest as
beings of apocalyptic capability, entities whose mere ex-
istence promises destruction.
Deadly When Summoned. The methods for sum-
moning elder elementals remain hidden in forbidden
tomes or inscribed on the walls of lost temples raised to
honor the Elder Elemental Eye. Only casters of super-
lative skill have even the faintest chance of calling forth
one of these monsters, and the spellcaster is often de-
stroyed by the effort. Thus, only the most unhinged and
nihilistic members of Elemental Evil cults attempt such
a summoning, in the hope of hastening the world toward '
some cataclysmic end.
Elemental Nature. An elder elemental doesn't require
air, food, drink, or sleep.

LEVIATHAN
Gargantuan elemental, neutral

Armor Class 17
Hit Points 328 (16d20 + 160)
Speed 40 ft., swim 120 ft.
,
STR DEX CON INT WIS CHA Tail. Melee Weapon Attack: + 16 to hit, reach 20 ft., one tar- • •
30 (+10) 24 (+7) 30 (+10) 2 (-4) 18 (+4) 17 {+3) get. Hit: 16 (ld12 + 10) bludgeoning damage plus 6 (ld12) f'
acid damage.
Saving Throws Wis +10, Cha +9
Tidal Wave (Recharge 6). While submerged, the leviathan mag-
Damage Resistances bludgeoning, piercing, and slashing from
ically creates a wall of water centered on itself. The wall is up
nonmagical attacks
250 feet long, up to 250 feet high, and up to 50 feet thick.
Damage Immunities acid, poison
Condition Immunities exhaustion, grappled, paralyzed, When the wall appears, all other creatures within its area
must each make a DC 24 Strength saving throw. A creature
petrified, poisoned, prone, restrained, stunned
takes 33 (6dl0) bludgeoning damage on failed save, or half as
Senses darkvision 60 ft., passive Perception 14
much damage on a successful one.
Languages - • , \.
Challenge 20 (25,000 XP) • • At the start of each of the leviathan's turns after the wall
appears, the wall, along with any other creatures in it, moves
50 feet away from the leviathan. Any Huge or smaller creature
Legendary Resistance (3/Day). If the leviathan fails a saving
throw, it can choose to succeed instead. inside the wall or whose space the wall enters when it moves
must succeed on a DC 24 Strength saving throw or take 27
Partial Freeze. If the leviathan takes 50 cold damage or more (5d10) bludgeoning damage. A creature takes this damage
during a single turn, the leviathan partially freezes; until the no more than once on a turn. At the end of each turn the wall
end of its next turn, its speeds are reduced to 20 feet, and it moves, the wall's height is reduced by 50 feet, and the damage
makes attack rolls with disadvantage. creatures take from the wall on subsequent rounds is reduced
by ldlO. When the wall reaches 0 feet in height, the effect ends.
Siege Monster. The leviathan deals double damage to objects
A creature caught in the wall can move by swimming. Be-
and structures (included in Tidal Wave).
cause of the force of the wave, though, the creature must make
Water Form. The leviathan can enter a hostile creature's space a successful DC 24 Strength (Athletics) check to swim at all
and stop there. It can move through a space as narrow as 1 during that turn.
inch wide without squeezing.
LEGENDARY ACTIONS
ACTIONS The leviathan can take 3 legendary actions, choosing from the
Multiattack. The leviathan makes two attacks: one with its options below. Only one legendary action option can be used
slam and one with its tail. at a time and only at the end of another creature's turn. The le-
viathan regains spent legendary actions at the start of its turn.
Slam. Melee Weapon Attack: +16 to hit, reach 20 ft., one tar-
get. Hit: 15 (ldlO + 10) bludgeoning damage plus 5 (ldlO) Slam (Costs 2 Actions). The leviathan makes one slam attack.
acid damage. Move. The leviathan moves up to its speed.

CHAPTER 6 I .BESTIARY