5e SRD >Creatures >

Tunnel Worm

Huge monstrosity, neutral

Armor Class 13 (natural armor)
Hit Points 149 (13d12 + 65)
Speed 20 ft., burrow 20 ft.

21 (+5) 13 (+1) 21 (+5) 1 (-5) 10 (+0) 6 (-2)

Condition Immunities prone
Senses darkvision 60 ft., tremorsense 60 ft., passive Perception 10
Languages —
Challenge 5 (1,800 XP)

Special Traits

  • Rend Armor. When the tunnel worm hits a creature wearing nonmagical armor or carrying a shield with its bite attack, the armor or shield takes a permanent -1 penalty to the AC it offers. Armor reduced to an AC of 10 or a shield that drops to +0 bonus is destroyed. A damaged shield or suit of armor can be repaired by a blacksmith.


  • Bite. Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 26 (6d6 + 5) piercing damage, and the target is grappled (escape DC 16). Until this grapple ends, the target is restrained. The tunnel worm can bite only the grappled creature and has advantage on attack rolls to do so.
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.