CR 5 – Type – Marble Wyrm
**Tier 2 play**
**Monster Name:** Marble Wyrm
**Size, Type, Alignment:** Large Monstrosity, Unaligned
**Core Stats:** Armor Class (AC) 15, Hit Points (HP) 85, Speed 40 ft., Swim 30 ft.
**Ability Scores:**
Strength 18 (+4),
Dexterity 14 (+2),
Constitution 16 (+3),
Intelligence 2 (-4),
Wisdom 12 (+1),
Charisma 1 (-5)
**Proficiencies:**
Saving Throws: Strength +7, Constitution +6
Skills: Perception +4
Damage Resistances: Bludgeoning, Piercing, and Slashing from Nonmagical Attacks
Damage Immunities: Poison
Condition Immunities: Charmed, Frightened
**Senses:** Blindsight 60 ft., Darkvision 60 ft., Passive Perception 14
**Languages:** Understands Aquan but cannot speak
**Challenge Rating (CR):** 5
**Special Abilities:**
– **Marble Burst:** Once per day, the Marble Wyrm can release a burst of marble-sized projectiles in a 20-foot radius. Each creature in that area must make a DC 15 Dexterity saving throw, taking 3d8 piercing damage on a failed save, or half as much on a success.
– **Camouflage:** The Marble Wyrm can blend into rocky or aquatic environments, gaining advantage on Dexterity (Stealth) checks made to hide.
**Actions:**
– **Multiattack:** The Marble Wyrm makes two attacks: one with its Bite and one with its Tail.
– **Bite:** +7 to hit, reach 10 ft., one target. Hit: 2d10 + 4 piercing damage.
– **Tail:** +7 to hit, reach 15 ft., one target. Hit: 2d8 + 4 bludgeoning damage and the target must succeed on a DC 15 Strength saving throw or be knocked prone.
– **Marble Barrage (Recharge 5-6):** The Marble Wyrm can unleash a barrage of marble projectiles in a 30-foot line that is 5 feet wide. Each creature in that line must make a DC 15 Dexterity saving throw, taking 4d6 piercing damage on a failed save, or half as much on a success.
**Description:** The Marble Wyrm is a serpentine creature that dwells in coastal caves and underwater caverns, often emerging when marble-sized orbs wash ashore. Its body is covered in smooth, glossy scales that resemble polished marble, allowing it to camouflage seamlessly with its surroundings. The Wyrm is known for its aggressive territorial behavior, using its speed and agility to ambush intruders. It employs hit-and-run tactics, striking swiftly with its powerful bite before retreating into the water or rocky terrain. Despite its low intelligence, the Marble Wyrm is cunning in battle, using its environment to its advantage.