Medium humanoid (thripper), chaotic neutral

Armor Class 15 (natural armor)
Hit Points 104 (16d8 + 32)
Speed 25 ft.

14 (+2) 19 (+4) 15 (+2) 11 (+0) 16 (+3) 9 (–1)

Skills Athletics +5, Perception +6, Stealth +7
Damage Vulnerabilities cold
Damage Resistances bludgeoning, piercing, and slashing from nonmagical attacks
Senses truesight 60 ft., passive Perception 16
Languages Thrippish, Void Speech
Challenge 6 (2,300 XP)
Proficiency Bonus +3


  • Feybane Weapons. The thripper’s weapons are cold iron and are magical when used against fey. When the thripper hits a fey with any weapon, the weapon’s damage is force instead of its normal damage type.
  • Fey Sense. The thripper can pinpoint, by scent, the location of fey within 60 feet of it and can sense the general direction of fey within 1 mile of it.
  • Soft Wings. The thripper can fly up to 40 feet on its turn, but it must start and end its movement on a solid surface such as a roof or the ground. If it is flying at the end of its turn, it falls to the ground and takes falling damage.


  • Multiattack. The tripper makes two Extractor Spear or Disorienting Chitter attacks.
  • Extractor Spear. Melee Weapon Attack: +7 to hit, reach 10 ft., one target. Hit: 13 (2d8 + 4) piercing damage plus 7 (2d6) necrotic damage. The target’s hp maximum is reduced by an amount equal to half the necrotic damage taken, and the thripper regains hp equal to that amount. The reduction lasts until the target finishes a short or long rest. The target dies if this effect reduces its hp maximum to 0.
  • Disorienting Chitter. Ranged Spell Attack: +6 to hit, range 60 ft., one target. Hit: 16 (3d8 + 3) thunder damage, and the target must succeed on a DC 14 Wisdom saving throw or fall prone as it briefly becomes disoriented and falls.


  • Glamour Counter. When a creature the thripper can see within 30 feet of it casts a spell, the thripper can counter the spell. This reaction works like the counterspell spell with a +6 spellcasting ability check, except the thripper can counter only spells from the enchantment or illusion schools, and it must make the ability check, regardless of the spell’s level.


An insectoid creature bursts through the window and leaps on the tavern table, swinging a spear with a curious tip. It hisses menacingly from its asymmetrical mouth before descending on the elves cowering in the corner.

Thrippers are humanoid insects from an aberrant dimension.

Mottled brown in color, feathery winged, and tall and slender, thrippers have their own distinct language of hisses and whooshing they make with their bizarre mouth structures.

Feykin Hunters. Thrippers hunt and consume fey, requiring their blood to sustain themselves. Their innate magical aptitude allows them to sense and disrupt the fey they hunt and makes them resistant to wily fey magic. In battle, thrippers use hollow spears like straws to attack and harvest their foes up close or release a high-pitched, chitter that disorients distant prey.

Delicate Wings. A thripper’s wings are soft, delicate, and incapable of sustaining the thripper in flight for long. They use their wings for short bursts of flight, such as catching airborne prey or escaping powerful foes.

Section 15: Copyright Notice

Tome of Beasts 3 © 2022 Open Design LLC; Authors: Eytan Bernstein, Celeste Conowitch, Benjamin L. Eastman, Robert Fairbanks, Scott Gable, Basheer Ghouse, Richard Green, Jeremy Hochhalter, Jeff Lee, Christopher Lockey, Sarah Madsen, Ben Mcfarland, Jonathan Miley, Kelly Pawlik, Sebastian Rombach, Chelsea Steverson, Brian Suskind, Mike Welham

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