Gargantuan dragon, Chaotic Neutral
| Armor Class | 22 (natural armor) |
|---|---|
| Hit Points | 370 (19d20 + 171) |
| Speed | 40 ft., climb 30 ft., fly 80 ft. |
| STR | DEX | CON | INT | WIS | CHA |
|---|---|---|---|---|---|
| 29 (+9) | 14 (+2) | 29 (+9) | 30 (+10) | 17 (+3) | 25 (+7) |
| Saving Throws | Con +17, Int +18, Wis +11 |
|---|---|
| Skills | Arcana +18, Insight +11, Perception +11 |
| Damage Vulnerabilities | — |
| Damage Resistances | cold; psychic; thunder |
| Damage Immunities | fire; lightning |
| Condition Immunities | charmed |
| Senses | blindsight 60 ft., darkvision 120 ft., passive Perception 21 |
| Languages | Common, Draconic |
| Challenge | 26 |
If Niv-Mizzet fails a saving throw, he can choose to succeed instead.
Niv-Mizzet can maintain concentration on two different spells at the same time. In addition, he has advantage on saving throws to maintain concentration on spells.
Niv-Mizzet has advantage on saving throws against spells and other magical effects.
When Niv-Mizzet casts a spell that deals damage, he can change the spell's damage to cold, fire, force, lightning, or thunder.
Niv-Mizzet makes three attacks: one with his bite and two with his claws.
Melee Attack Roll: +17 to hit, reach 15 ft., one target. Hit: 18 (2d8 + 9) piercing damage plus 14 (4d6) fire damage.
Melee Attack Roll: +17 to hit, reach 10 ft., one target. Hit: 14 (2d4 + 9) slashing damage.
Melee Attack Roll: +17 to hit, reach 20 ft., one target. Hit: 16 (2d6 + 9) bludgeoning damage.
Niv-Mizzet exhales fire in a 90-foot cone. Each creature in that area must make a DC 25 Dexterity saving throw, taking 91 (26d6) fire damage on a failed save, or half as much damage on a successful one.
Niv-Mizzet casts one of his cantrips.
Niv-Mizzet makes a tail attack.
Niv-Mizzet beats his wings. Each creature within 15 feet of him must succeed on a DC 25 Dexterity saving throw or take 14 (2d4 + 9) bludgeoning damage and be knocked prone. Niv-Mizzet can then fly up to half his flying speed.
Niv-Mizzet regains a spell slot of 3rd level or lower.
Niv-Mizzet is a 20th-level Izzet spellcaster. His spellcasting ability is Intelligence (spell save DC 26, +18 to hit with spell attacks). He has the following wizard spells prepared:
Cantrips: fire bolt, light, prestidigitation, ray of frost, shocking grasp
Level 1 (4 slots): detect magic, magic missile, shield, thunderwave, unseen servant
Level 2 (3 slots): blur, enlarge/reduce, flaming sphere, hold person, scorching ray
Level 3 (3 slots): counterspell, fireball, lightning bolt, slow
Level 4 (3 slots): confusion, dimension door, fabricate
Level 5 (2 slots): conjure elemental, polymorph, wall of fire, wall of force
Level 6 (1 slots): chain lightning, disintegrate, true seeing
Level 7 (1 slots): project image, reverse gravity, teleport
Level 8 (1 slots): control weather, maze, power word stun
Level 9 (1 slots): prismatic wall