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Flailing Dreadnaught

Huge construct (titanspawn), chaotic evil

STR DEX CON INT WIS CHA
21 (+5) 10 (+0) 17 (+3) 4 (-3) 10 (+0) 1 (-5)

Armor Class 18 (natural armor)
Hit Points 142 (15d12 + 45)
Speed 0 ft., fly 40 ft. (hover) Damage Immunities poison, psychic; bludgeoning, piercing, and slashing from nonmagical attacks that aren’t adamantine
Condition Immunities charmed, exhaustion, frightened, paralyzed, petrified, poisoned, prone
Senses blindsight 60 ft., passive Perception 10
Languages Titan Speech (can’t speak)
Challenge 13 (10,000 XP)

Special Traits

  • Immutable Form. The flailing dreadnought is immune to any spell or effect that would alter its form.
  • Magic Weapons. The flailing dreadnought’s weapon attacks are magical.

Actions

  • Multiattack. The flailing dreadnought makes four attacks: one with its bite and three with its tentacles.
  • Bite. Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 15 (3d6 + 5) piercing damage.
  • Tentacle. Melee Weapon Attack: +10 to hit, reach 15 ft., one target. Hit: 21 (3d10 + 5) slashing damage.
  • Flailing Burst (Recharge 4-6). The flailing dreadnought makes one tentacle attack against each creature it chooses within 15 feet of it. Attack rolls against the dreadnought have advantage until the start of its next turn.

Tactics

Created to be a weapon of war, the flailing dreadnought is a fierce, but not very bright opponent. It almost always rushes into combat, roaring and biting, and if it has several opponents near it unleashes its flailing burst as often as possible. Against fewer enemies, or those who try to maintain their distance, the dreadnought drags foes about the battlefield to place them wherever is most advantageous for itself.

Description

Flailing dreadnoughts are huge metallic creatures with some bioorganic material mixed into their composition. They resemble huge floating eggs covered in segmented metal plates, with massive, fanged maws that can be extended like a shark’s when biting. Dreadnoughts attack virtually anything that comes near them, particularly if it has metal on or about its person. They are thought to ingest some amount of metal ore or metallic goods occasionally, but it is unknown whether they do this out of necessity, habit, or for some other reason.

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