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Swarm of Nanobots

Family: Swarm

Large swarm of tiny constructs, lawful neutral

Armor Class 16
Hit Points 93 (11d10 + 33)
Speed 0 ft., fly 30 ft. (hover)

1 (-5) 22 (+6) 16 (+3) 12 (+1) 12 (+1) 5 (-3)

Damage Resistances lightning; bludgeoning, piercing, slashing
Damage Immunities poison, psychic
Condition Immunities charmed, exhaustion, frightened, grappled, paralyzed, petrified, prone, restrained, stunned, unconscious
Senses blindsight 10 ft. (blind beyond this radius), passive Perception 11
Languages understands Gnomish but can’t speak
Challenge 5 (1,800 XP)


  • Cloud Computing. When connected to a cloud mind, the swarm can use the cloud mind’s Intelligence, Wisdom, and Charisma saving throws in place of its own. Additionally, the swarm can see and hear everything the cloud mind can see and hear.
  • Supercharger. When the swarm takes lightning damage, it becomes accelerated and gains an additional action it can take on its next turn. The swarm can only benefit from this feature once per round.
  • Swarm. The swarm can occupy another creature’s space and vice versa, and the swarm can move through any opening large enough for a Tiny nanobot. The swarm can’t regain hit points or gain temporary hit points.


  • Multiattack. The swarm makes two Deconstruct attacks. It can use either Defensive Line or Good Offense in place of one of these attacks.
  • Deconstruct. Melee Weapon Attack: +9 to hit, reach 0 ft., one creature in the swarm’s space. Hit: 14 (4d6) force damage.
  • Defensive Line. The swarm chooses one creature in its space. That creature gains resistance to all damage until the start of the swarm’s next turn.
  • Good Offense. The swarm chooses one creature in its space. That creature must succeed on a DC 17 Strength saving throw or become restrained until the start of the swarm’s next turn.
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