Huge elemental, neutral

Armor Class: 22 (Natural Armour)

Hit Points: 216 (16d12+112) 16d12+112

Speed: 30 ft , fly: 15 ft , burrow: 20 ft , swim: 20 ft

STR

23 +6

DEX

7 -2

CON

25 +7

INT

5 -3

WIS

13 +1

CHA

9 -1

Saving Throws: Str +10 1d20+10 , Con +11 1d20+11

Damage Resistances: Poison

Damage Immunities: Fire

Condition Immunities: Petrified, Poisoned

Senses:

Darkvision 60 ft., Passive Perception 11, Tremorsense 20 ft.

Languages: Ignan, Terran

Challenge Rating: 11 ( 7 200 XP)

Proficiency Bonus: +4

Actions

Multiattack. The Calorus makes one Roll Over attack if it is available and then makes one Bite attack.

Bite. Melee Attack Roll: +10 1d20+10 , reach 10 ft. Hit: 20 (4d6 + 6) 4d6+6 Piercing damage.

Heat Beam (Recharge 6 1d6 ). Dexterity Saving Throw: DC 19, each creature in a 60-foot-long, 5-foot-wide Line. Failure: 55 (10d10) 10d10 Fire damage. Success: Half damage. Failure or Success: The Calorus rocks are softened until the start of it's next turn (see Soften Rocks above).

Roll Over (Recharge 4-6 1d6 ). Strength Saving Throw: DC 16, each creature in a 20-foot Square in front of the Calorus. Failure: 20 (4d6+6) 4d6+6 Bludgeoning damage and have the Prone condition. Success: Half damage, not knocked Prone and are pushed 5 feet away away perpendicularly.

Tail. Melee Attack Roll: +10 1d20+10 , reach 15 feet. Hit: 13 (2d6+6) 2d6+6 Bludgeoning damage.

Legendary Actions

Legendary Action Uses: 3. Immediately after another creature's turn, the Calorus can expend a use to take one of the following actions. The Calorus regains all expended uses at the start of each of its turns.

• Fire Ventilation (Costs 2 Actions). Dexterity Saving Throw: DC 19, each creature within a 5-foot Emanation originating from the Calorus. Failure: 14 (4d6) 4d6 Fire damage. Success: Half damage.
• Exhaust Ventilation (Costs 2 Actions). Constitution Saving Throw: DC 19, each creature within a 5-feet Emanation originating from the Calorus. Failure: 7 (2d6) 2d6 Poison damage and has the poisoned condition for 1 minute. The target repeats the saving throw at the start of each of it's turns, ending the effect on a success. Success: Half damage only.
• Sleep Ventilation (Costs 2 Actions). Constitution Saving Throw: DC 19, each creature within a 5-feet Emanation originating from the Calorus. Failure: The target has the Incapacitated condition until the end of its next turn, at which point it repeats the save. Second Failure: The target has the Unconscious condition for 1 minute. This effect ends for the target if it takes damage or a creature within 5 feet of it takes an action to wake it.
• Tail Attack. The Calorus makes one Tail attack.