Arcane Leviathan

Stat block

Cha

8

Con

21

Dex

5

Int

5

Str

26

Wis

17

Speed

Swim: 60; Walk: 10

Senses

truesight 120', passive Perception 13

Skills

Perception: 3

Actions

• Multiattack. One Slam and two Claws or four Lightning Bolts.
• Claw. Melee Weapon Attack: +13 to hit, 15 ft., one target, 26 (4d8+8) slashing damage. If target is Huge or smaller it is grappled (escape DC 19). Leviathan has two claws each of which can grapple only one target.
• Slam. Melee Weapon Attack: +13 to hit, 5 ft., one target, 18 (4d4+8) bludgeoning damage and target: DC 19 Str save or be knocked prone.
• Lightning Bolt. Ranged Spell Attack: +8 to hit 150/600' one target 17 (4d6+3) lightning.
• Pylon Discharge (Recharge 5-6). Discharges energy surge at a point it can see within 200' of it. Each creature within 30' of that point: 45 (10d8) lightning and is blinded until the end of its next turn (DC 19 Dex half damage not blinded).

Languages

understands creator's languages but can't speak

Saving throws

Wisdom: 8; Charisma: 4; Strength: 1; Constitution: 1; Intelligence: 2

Damage immunities

lightning, poison, psychic

Special abilities

• Construct Nature. Doesn't require air food drink or sleep.
• Impregnable. If subjected to an effect that allows it to make a save to take only half damage it instead takes no damage if it succeeds on the save and only half damage if it fails.
• Siege Monster. Double damage to objects/structures.

Damage resistances

acid, thunder; nonmagic B/P/S attacks

Condition immunities

blinded, charmed, deafened, exhaustion, frightened, paralyzed, petrified, poisoned