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Huge monstrosity, neutral

Armor Class 14
Hit Points 175 (14d12 + 84)
Speed 40 ft., swim 30 ft.

23 (+6) 13 (+1) 23 (+6) 2 (–4) 13 (+1) 4 (–3)

Saving Throws Constitution +10, Wisdom +5
Skills Perception +9, Stealth +5
Damage Immunities fire, lightning
Senses darkvision 60 ft., passive Perception 19
Challenge 12 (8,400 XP)

Special Traits

  • Amphibious. The froghemoth can breathe air and water.
  • Shock Sickness. Taking lightning damage causes the froghemoth to go into a torpor, mimicking the effects of the slow spell. This effect lasts until the end of the froghemoth’s next turn.


  • Multiattack. The froghemoth makes up to two attacks with its tentacles, and it can use its bite or its tongue.
  • Tentacle. Melee Weapon Attack: +10 to hit, reach 20 ft., one target. Hit: 24 (4d8 + 6) bludgeoning damage. If the target is Huge or smaller, it is grappled (escape DC 16). While grappling a creature, the froghemoth cannot use that tentacle. The froghemoth has four tentacles.
  • Bite. Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 28 (4d10 + 6) piercing damage and the target is swallowed if it is a Medium or smaller creature. A swallowed creature is blinded and restrained, has total cover against attacks and other effects outside the froghemoth, and takes 14 (4d6) acid damage at the start of each of the froghemoth’s turns. The froghemoth can hold up to 2 Medium or smaller creatures in its gullet. If the froghemoth takes 30 damage or more during a single turn from a creature inside it, the froghemoth must succeed on a DC 20 Constitution saving throw at the end of its turn or disgorge all swallowed creatures, each of which falls prone within 20 feet of the froghemoth. If the froghemoth dies, a swallowed creature is no longer restrained by it and can escape from the corpse using 10 feet of movement, exiting prone.
  • Tongue. Melee Weapon Attack: +10 to hit, reach 30 ft., one target. Hit: 19 (3d8 + 6) slashing damage, and the target must succeed on a DC 18 Strength saving throw or be pulled up to 25 feet to an unoccupied space adjacent to the froghemoth. The froghemoth can then make a bite attack against the creature as a bonus action.
Section 15: Copyright Notice

Rappan Athuk © 2018, Frog God Games, LLC; Authors Bill Webb, Clark Peterson, Skeeter Green, Tom Knauss, Lance Hawvermale, WDB Kenower, Casey Christofferson, and Greg Raglund; based on the original creation of Bill Webb.