Siege Monster. The wurm deals double damage to objects and structures.
Tunneler. The wurm can burrow through solid rock at half its burrow speed and leaves a 10-foot-diameter tunnel in its wake.
Lifelink. When the engine deals damage to a creature with one of it's attacks, it regains a number of hit points equal to a quarter the damage dealt.
Deathtouch. A creature hit by a melee weapon attack from the engine must succeed on a DC 16 Constitution saving throw, taking 10 (3d6) acid damage on a failed save, or half as much damage on a successful one.
Earth Tremors. The wurm creates earth tremors as it moves overland or underground. Any creature that comes within 30 feet of the moving wurm for the first time on a turn must succeed on a DC 12 Dexterity saving throw or take 10 (3d6) bludgeoning damage and fall prone. Any structure or object anchored to the ground that comes within 30 feet of the moving wurm for the first time on a turn takes 10 (3d6) force damage.
Dead husk. In the inside of the wurm remains the dead body of an ancient wurm, making it an undead in addition to being an construct.
Multiattack . The Engine makes three attacks. Two slams and one bite.
Slam. Melee Weapon Attack: +7 to hit, reach 5 ft. one target. Hit: 10 (2d6+2) [magical bludgeoning] damage.
Bite. Melee Weapon Attack: +7 to hit, reach 15ft. one target. Hit: 10 (2d6 + 2) [magical piercing] +10(2d6 + 2) [Cold] damage.
As a bonus action, the wurmcoil engine can produce 1d10+3 litle wurmlings, it can only do this when it isnt in 10 ft of another non-construct creature, then sparks equal to the amount of wurmlings created fly out of the wurm, the sparks fly towards any target, the sparks have an -6 to hit and deal each 1d4 lightning damage.
Split. As the wurmcoil engine reaches 0 hit points, it splits up into a undead wurm and a wurm contaiment unit.
Roar. The wurmcoil engine can roar as a creature moves into an radius of 20 ft. around it, the roar pushes back any creature 20 ft. away.
This monster can make an legendary action once per 10 turns.
Dual breath weapons. The wurm spews an pool of necrotic acid, any creature in a 30 ft. radius makes an constitution save of 14 or take 6d4 acid damege and 2d20 necrotic damege or half if succesfull.
Description
The wurmcoil engine is an massive mechanical wurm, making tremors as it moves through the dessert. Its a true beast of an machine, spewing an dual breath weapon and dealing damage around it as it moves.
Inside of the wurmcoil resides an ancient wurm, being build around this wurm when the legion found the wurm inside the dessert.
The wurm was made into an moving factory, creating wurmlings from all sort of materials it finds.
The wurmcoil engine has a finnal suprise when it finnaly falls, it will split into the undead wurrm and an contaiment unit, fighting fierce to the end.
Comments