Aspect of Tiamat (2024 Version)

Chromatic Wrath (Recharges after a Short or Long Rest). If the aspect would be reduced to 0 Hit Points or killed outright, her current Hit Point total instead resets to 800 Hit Points, she recharges her Chromatic Flames, and she regains any expended uses of Legendary Resistance. Additionally, the aspect can now use the options in the "Mythic Actions" section for 1 hour. Award a party an additional 155,000 XP (310,000 XP total) for defeating the Aspect of Tiamat after her Chromatic Wrath activates.

Legendary Resistance (6/Day, or 7/Day in Lair). If the aspect fails a saving throw, she can choose to succeed instead.

Multiattack. The aspect makes three Ferocious Rend attacks. She can replace one attack with a use of Spellcasting to cast Melf's Acid Arrow (level 8 version), Mind Spike (level 9 version), Rime's Binding Ice (level 6 version), Scorching Ray (level 6 version), or Shatter (level 6 version).

Ferocious Rend. Melee Attack Roll: +19, reach 20 ft. Hit: 23 (2d12 + 10) Slashing damage plus 19 (3d12) damage of a type chosen by the aspect: Acid, Cold, Fire, Lightning, or Poison, and the aspect has Advantage on D20 Tests until the start of her next turn.

Chromatic Flames (Recharge 5–6). Dexterity Saving Throw: DC 27, each creature in a 300-foot Cone. Failure: 117 (18d12) damage of a type chosen by the aspect: Acid, Cold, Fire, Lightning, or Poison. Success: Half damage. Failure or Success: A creature reduced to 0 Hit Points by this breath is obliterated, leaving behind any magic items it was wearing or carrying.

Spellcasting. The aspect casts one of the following spells, requiring no Material components and using Charisma as the spellcasting ability (spell save DC 27, +19 to hit with spell attacks):

At Will: Animate Dead, Cloudkill (level 7 version), Command (level 3 version), Detect Magic, Detect Thoughts, Dispel Magic, Fear (90-foot Cone), Ice Storm (level 6 version), Identify, Invisibility, Locate Object, Mage Hand, Melf's Acid Arrow (level 8 version), Mind Spike (level 9 version), Nondetection, Rime's Binding Ice (level 6 version), Scorching Ray (level 6 version), Shatter (level 6 version)

1/Day Each: Befuddlement, Control Weather, Create Undead (level 9 version), Dominate Monster (level 9 version), Earthquake, Etherealness, Finger of Death, Fireball (level 9 version), Imprisonment, Geas (level 9 version), Mass Suggestion (level 9 version), Mirage Arcane, Modify Memory (level 9 version), Plane Shift, Prismatic Wall, Regenerate, Scrying, Sending, Speak With Dead, Teleport, Time Stop, Tsunami, Vitriolic Sphere (level 9 version), Wish

Legendary Action Uses: 3 (4 in Lair). Immediately after another creature's turn, the aspect can expend a use to take one of the following actions. The aspect regains all expended uses at the start of each of her turns.

Avaricious Magic. The aspect uses Spellcasting to cast Melf's Acid Arrow (level 8 version), Mind Spike (level 9 version), Rime's Binding Ice (level 6 version), Scorching Ray (level 6 version), or Shatter (level 6 version). The aspect can't take this action again until the start of her next turn.

Draconic Presence. The aspect uses Spellcasting to cast Cloudkill (level 7 version), Command (level 3 version), Fear (90-foot Cone), Ice Storm (level 6 version), or Invisibility on herself. If the aspect casts Invisibility on herself, she can fly up to her Fly Speed without provoking Opportunity Attacks. The aspect can't take this action again until the start of her next turn.

Vicious Pounce. The aspect moves up to her Speed without provoking Opportunity Attacks, and she can make one Ferocious Rend attack at any point during that move.

If the aspect's Chromatic Wrath trait has activated in the last hour, she can use the options below as Legendary Actions.

Chromatic Flare. Constitution Saving Throw: DC 27, each creature in a 60-foot Emanation originating from the aspect. Failure: 39 (6d12) damage of a type chosen by the aspect: Acid, Cold, Fire, Lightning, or Poison, and the target gains 1 Exhaustion level. Success: Half damage only. Failure or Success: The aspect can't take this action again until the start of her next turn.

Hurl Through Avernus. Charisma Saving Throw: DC 27, one creature the aspect can see within 120 feet. Failure: 55 (10d10) Force damage, and the target has the Incapacitated condition and is transported to Avernus (the first layer of the Nine Hells) until the start of the aspect's next turn, at which point it reappears in an unoccupied space of the aspect's choice within 120 feet of the aspect. Success: Half damage only. Failure or Success: The aspect can't take this action again until the start of her next turn.