Water Bug, Giant

Small beast, unaligned

Armor Class 13 (natural armor)
Hit Points 22 (5d6 + 5)
Speed 20 ft., swim 40 ft.

15 (+2) 10 (+0) 12 (+1) 1 (-5) 9 (-1) 3 (-4)

Skills Perception +1, Stealth +2
Senses darkvision 60 ft., passive Perception 11
Challenge 1/2 (100 XP)

Special Traits

  • Hold Breath. The giant water bug can hold its breath for 15 minutes.
  • Spider Climb. The giant water bug can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.


  • Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) piercing damage and the target must make a DC 11 Constitution saving throw, taking 5 (2d4) poison damage on a failed save, or half as much damage on a successful one.


  • Play Dead. When the giant water bug is reduced to 10 hit points or fewer, it can use its reaction to become prone and leak a blood-like fluid, appearing dead. A creature that sees this reaction can tell the giant water bug was not actually slain with a successful DC 12 Wisdom (Insight) check. If a creature believes the giant water bug is dead and ends its turn within 5 feet of the giant water bug, the bug can use this reaction to leap up and attack the creature. If it hits, the attack deals an extra 3 (1d6) piercing damage.
Section 15: Copyright Notice

Tegel Manor © 2019, Frog God Games, LLC; Authors: Bill Webb & Thom Wilson with additional material by Gabor Lux

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