Robot, Arachnid

Small construct (robot), neutral

Armor Class 14 (natural armor)
Hit Points 22 (4d6 + 8)
Speed 40 ft., climb 20 ft.

9 (–1) 14 (+2) 14 (+2) 10 (+0) 12 (+1) 1 (–5)

Skills Athletics +3, Perception +3, Stealth +6
Damage Vulnerabilities lightning
Damage Resistances fire; bludgeoning, piercing, and slashing damage from nonmagical weapons that aren’t adamantine.

Damage Immunities necrotic, poison, psychic
Condition Immunities charmed, exhaustion, frightened, paralyzed, poisoned, stunned
Senses darkvision 60 ft.; passive Perception 13
Languages Common, Jagladine, Ultari
Challenge 1/2 (100 XP)


  • Constructed Nature. The robot doesn’t need to eat, drink, sleep, or breathe.
  • Explosion. If the arachnid robot is destroyed or takes damage while below half its maximum hit points, it must make a Constitution saving throw with a DC equal to the amount of damage taken. On a failed save the robot immediately drops to 0 hit points and explodes in a burst of plasma. Every creature within 10 feet must make a DC 11 Dexterity saving throw, taking 1d4 (2) fire damage and 1d4 (2) lightning damage on a failed save, or half as much on a successful one.
  • Fragile. If it has fewer that half its hit points, the robot has diasvantage on attack rolls and ability checks, and its speed is reduced by half.


  • Multiattack. The arachnid robot makes two claw attacks.
  • Claw. Melee Weapon Attack: +4 to hit, melee 5 ft., 1 target. Hit: 1d4+2 (5) slashing damage.
  • Plasma Torch. Ranged Weapon Attack: ranged 80 ft./320 ft., 1 target. +4 to hit, 1d4+2 (4) fire damage plus 1d4 (2) lightning damage.
  • Plasma Cone (recharge 5-6). The arachnid robot unleashes a 15-foot cone of plasma. Every creature in the cone must make a DC 11 Dexterity saving throw, taking 1d6 (3) fire damage and 1d6 (3) lightning damage.


Ubiquitous pets of technologists, arachnid robots also serve as sentinels and spies. Arachnid robots come equipped with a plasma welding torch that resembles a scorpion’s tail stinger and doubles as a weapon. Under stress, an arachnid robot’s plasma core can overload, destroying the robot in a fiery blast. This tendency inspired the practice of using the robots as suicide drones.

Sentient. An arachnid robot is intelligent enough to have a sense of self-preservation, however, and one can be made to undertake such a mission only through trickery.

Utility Claws. Despite their scorpion-like appearance, arachnid robots’ ability to use their claws as an additional pair of legs when climbing or moving quickly has earned the robots the name “spiderbots.”

Section 15: Copyright Notice

The Dragon’s Hoard #21 © 2022, Legendary Games; Authors Jason Nelson, Miguel Colon, Alex Riggs, Mike Myler, Robert J. Grady, Michael “solomani” Mifsud, Darrin Drader, Matt Kimmel, Scott D. Young.

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