Medium Elemental, Unaligned
Armor Class 13 (natural armor)
Hit Points 45 (6d8 + 18)
Speed walk +20, burrow +30
Challenge 1
Skills Stealth +3
Damage Vulnerabilities False
Damage Resistances cold
Damage Immunities False
Condition Immunities False
Senses darkvision 120 ft., passive Perception 11
Languages —
Amphibious. The rime worm grub can breathe air and water.
Ravenous Larva. The rime worm grub can make an opportunity attack against any creature that leaves its reach, even if the creature takes the Disengage action. In addition, it has advantage on melee attack rolls against any creature that doesn't have all its hp.
Snow Camouflage. The rime worm grub has advantage on Dexterity (Stealth) checks made to hide in snowy terrain.
Snow Stride. The rime worm grub can burrow through nonmagical snow and ice in addition to sand, earth, and mud. In addition, difficult terrain composed of snow or ice doesn't cost it extra movement.
Rime Tendril. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 3) bludgeoning damage plus 4 (1d8) cold damage.
Source: Tome of Beasts 2023 · OGL/Open