Burrow Worm

• Ground Manipulation. The Burrow Worm can use an action to cause stone and earth within its space to grow soft and muddy in a radius of 100 ft, centerd on itself. The ground remains muddy for 1 minute after the Burrow Worm moves off from the location. The Burrow Worm can move through these areas with ease, but other creatures treat them as difficult terrain. If the Burrow Worm has buried itself and uses the ability, the muddy ground forms a slippery funnel to its mouth. This muddy funnel requires a DC 18 Dexterity saving throw to avoid sliding to its centre where the creature’s mouth awaits. Any creature sliding to its mouth is immediately subjected to a free bite attack and a swallow whole attack. Attempts to climb out of the slippery funnel require a DC 16 Strength (Athletics) check.

• Regeneration. The Burrow Worm regains 10 hit points at the start of its turn if it has at least 1 hit point.

• Seige Monster. The Burrow Worm deals double damage to objects and structures.

• Multiattack. The Burrow Worm makes two attacks.

• Bite. Melee Weapon Attack: +15 to hit, reach 10 ft., one target. Hit: 19 (2d8 + 10) piercing damage. If the target is a Huge or smaller creature, it must succeed on a DC 19 Strength saving throw or be swallowed by the Burrow Worm A swallowed creature is blinded and restrained, it has total cover against attacks and other effects outside the Burrow Worm, and it takes 17 (5d6) acid damage at the start of each of the Burrow Worm’s turns. If the Burrow Worm takes 20 damage or more on a single turn from a creature inside it, the Burrow Worm must succeed on a DC 19 Constitution saving throw at the end of that turn or regurgitate all swallowed creatures, which fall prone in a space within 10 feet of the Burrow Worm. If Burrow Worm dies, a swallowed creature is no longer restrained by it and can escape from the corpse by using 10 feet of movement, exiting prone.

• Barrage (Recharge 5-6). The Burrow Worm releases a swarm of rock in a 30-foot-radius spread. Those within the area of effect must make a DC 18 Dexterity saving throw, taking 45 (10d8) bludgeoning damage on a failure, or half as much on a success.

The Burrow Worm can take a legendary action at the end of another creature’s turn. The Burrow Worm regains spent legendary actions at the start of its turn.

• Burrow. The Burrow Worm moves at its full burrow speed and does not provoke opportunity attacks.