Unknown Shores
Cinderstorm Tyrant CR: 20
Gargantuan elemental, unaligned
Armor Class:
Hit Points:
Speed:
Saving Throws: Str +16, Con +13, Wis +10
Damage Resistances: bludgeoning, piercing, and slashing from nonmagical attacks
Damage Immunities: fire, poison
Condition Immunities: charmed, exhaustion, frightened, paralyzed, petrified, poisoned
Senses: darkvision 120 ft., passive Perception 14
Languages: Ignan
Challenge Rating: 20
( 25,000 XP)
Proficiency Bonus: +6
Special Abilities
Living Inferno
The ground within 20 feet of the cinderstorm tyrant is superheated.
A creature that enters this area for the first time on a turn or ends its turn there takes 10 (3d6) fire damage.
Smoke Shroud
The area within 30 feet of the cinderstorm tyrant is lightly obscured by swirling ash and smoke.
Ranged weapon attacks made through this smoke beyond 30 feet are made with disadvantage.
Burning Ground
Certain abilities create Burning Ground.
Burning Ground is difficult terrain.
A creature entering Burning Ground for the first time on a turn or ending its turn there takes 7 (2d6) fire damage.
Burning Ground lasts until the end of the cinderstorm tyrant's next turn unless otherwise noted.
Infernal Advance
Whenever the cinderstorm tyrant moves, each space it leaves behind becomes Burning Ground.
Wildfire Incarnate
Whenever the cinderstorm tyrant deals fire damage to a creature, the space that creature occupies becomes Burning Ground.
Unquenchable
Nonmagical flames within 120 feet of the cinderstorm tyrant cannot be extinguished except by magic.
Unstoppable Advance
The cinderstorm tyrant can move through the spaces of Huge or smaller creatures.
The first time it enters a creature's space on a turn, that creature must succeed on a DC 22 Strength saving throw or be pushed into the nearest unoccupied space adjacent to the tyrant and take 10 (3d6) bludgeoning damage.
This movement doesn't provoke opportunity attacks.
Actions
Multiattack
The cinderstorm tyrant makes two Slam attacks.
Slam
Melee Weapon Attack: +16 to hit, reach 15 ft., one target.
Hit: 28 (3d10 + 12) bludgeoning damage plus 14 (4d6) fire damage.
The target must succeed on a DC 22 Strength saving throw or be pushed up to 10 feet.
If pushed into Burning Ground, it immediately suffers its effects.
Cinder Breath (Recharge 5–6)
The cinderstorm tyrant exhales a roaring torrent of burning ash in a 90-foot cone.
Each creature in the area must make a DC 21 Dexterity saving throw, taking 63 (18d6) fire damage on a failed save, or half as much on a successful one.
A creature that fails the save is also blinded until the end of its next turn.
The affected area becomes Burning Ground.
Bonus Actions
Ash Burst
The cinderstorm tyrant detonates every patch of Burning Ground within 60 feet.
Each creature occupying Burning Ground must succeed on a DC 21 Dexterity saving throw or take 10 (3d6) fire damage and be pushed up to 10 feet.
Legendary Actions
The cinderstorm tyrant can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. The tyrant regains spent legendary actions at the start of its turn.
Relentless Advance
The cinderstorm tyrant moves up to half its speed.
This movement triggers Infernal Advance.
Fan the Flames (Costs 2 Actions)
Choose one area of Burning Ground within 60 feet.
That Burning Ground immediately extends into each adjacent square or space, creating new Burning Ground.
Ash Pulse (Costs 3 Actions)
Each creature within 15 feet of the cinderstorm tyrant must succeed on a DC 21 Constitution saving throw or take 14 (4d6) fire damage and become blinded until the end of its next turn.
Usual Tactics
Keep the tyrant moving every round. Never leave it stationary unless absolutely forced to. Its greatest weapon isn't its Slam or Cinder Breath. It's the burning battlefield left in its wake. Drive enemies into Burning Ground, force them to reposition, and let the terrain wear them down as the tyrant relentlessly advances.
Oof, there's a challenge :) He's fun.
He got out of hand fast. It was a weird combat.