Swarm of Centipedes
  
  
  Medium Swarm
  
  , Unaligned
  
  
  
  
    • Armor Class: 12
    • Hit Points: 22 (5d8)
    • Speed: 20 ft., climb 20 ft.
  
  
  
  
  
    
      
        | STR | 
        DEX | 
        CON | 
        INT | 
        WIS | 
        CHA | 
      
    
    
      
        | 3 (-4) | 
        13 (+1) | 
        10 (+0) | 
        1 (-5) | 
        7 (-2) | 
        1 (-5) | 
      
    
  
  
  
  
  
    
    
    
      • Condition Immunities:
      charmed, frightened, grappled, paralyzed, petrified, prone, restrained, stunned
      
    
    
      • Resistances:
      bludgeoning, piercing, slashing
      
    
    
    
      • Senses:
      blindsight 10 ft.
      
    
    
    • Challenge:
    1/2 (100 XP)
    
  
  
  
  
  
    
      • 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 insect. The swarm can't regain hit points or gain temporary hit points.
      
      
    
  
  
  
  
  
  
  
  
    Actions
    
      • Bites: 
Melee Weapon Attack: +3 to hit, reach 0 ft., one target in the swarm's space. Hit: 10 (4d4) piercing damage, or 5 (2d4) piercing damage if the swarm has half of its hit points or fewer.
A creature reduced to 0 hit points by a swarm of centipedes is stable but poisoned for 1 hour, even after regaining hit points, and paralyzed while poisoned in this way.