Carnivora Apex

Legendary Resistance (3/Day). If Carnivora Apex fails a saving throw, it can choose to succeed instead. 

Magic Resistance. Carnivora Apex has advantage on saving throws against spells and other magical effects.

Change Colors. If Carnivora Apex takes damage from either Lightning, Fire, or Poison they will automatically change their scale color to Yellow/Gold, Red/Black, or Purple/Blue. Gaining the abilities associated with that color until it chooses another, or until the end of the encounter.

Multiattack. Carnivora Apex can use its Terrifying Majesty. It then makes three attacks: one with its bite and two with its tail, or it can use its breath weapons.

Bite. Melee Weapon Attack: +19 to hit, reach 15 ft., one target. Hit: 36 (4d12 + 10) piercing damage, Hit: 7 (1d10) lightning/fire/poison damage.

Tail. Melee Weapon Attack: +19 to hit, reach 20 ft., one target. Hit: 31 (4d10 + 9) bludgeoning damage.

Terrifying Majesty. Carnivora Apex emanates an aura of overwhelming power and dread. Each creature of Carnivora Apex's choice within 120 feet and aware of it must succeed on a DC 20 Wisdom saving throw or be subjected to an effect based on Carnivora Apex's current scale color.

- Yellow/Gold Scales. Creatures become stunned by the electrifying aura, seeing visions of impending storms and destruction.

- Red/Black Scales. Creatures are overwhelmed by intense heat and visions of volcanic eruptions, becoming incapacitated as they feel their resolve melting away.

- Purple/Blue Scales. Creatures are confused as they are bombarded with hallucinogenic phantasms and toxins, causing them to see allies as enemies or become disoriented.

Affected creatures can repeat the saving throw at the end of each of their turns, ending the effect on themselves on a success. The aura's effects only apply once each turn and do not stack if the creature is already affected by one of the colors. If Carnivora Apex changes its scale color, the effect on the creatures also shifts to match the new color, requiring a new saving throw against the new effect

Breath Weapons (Recharge 5-6). Carnivora Apex spend a turn collecting energy to unleash a mighty breath weapon. Once the breath weapon is used, Carnivora Apex's scale color changes to the corresponding color. At the start of his next turn, he releases the power in one of these ways.

- Lightning Breath (Yellow/Gold Scales): Carnivora Apex exhales lightning in a 120-foot line that is 10 feet wide. Each creature in that line must make a DC 22 Dexterity saving throw, taking 90 (12d12) lightning damage on a failed save, or half as much damage on a successful one.

- Magma Breath (Red/Black Scales): Carnivora Apex spews molten lava in a 60-foot cone. Each creature in the area must make a DC 22 Constitution saving throw, taking 90 (12d12) fire damage on a failed save, or half as much damage on a successful one, and possibly turning to stone as per the "Petrified" condition for failed saves.

- Poison Breath (Purple/Blue Scales): Carnivora Apex exhales toxic gas in a 90-foot cone. Each creature in that area must make a DC 22 Constitution saving throw, taking 78 (12d10) poison damage on a failed save, or half as much damage on a successful one, and become poisoned for 1 minute.

Change Colors. As a bonus action, Carnivora Apex can change it's scale color (Yellow/Gold, Red/Black, Purple/Blue), gaining the abilities associated with that color until it chooses another or until the end of the encounter.

Carnivora Apex 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. Carnivora Apex regains spent legendary actions at the start of its turn.

Detect (Costs 1 Action). Carnivora Apex makes a Wisdom (Perception) check.

Tail Attack (Costs 1 Action). Carnivora Apex makes a tail attack.

Move (Costs 1 Action). Carnivora Apex moves up to half it's speed without provoking opportunity attacks.