Chromatic Illusions:
The Zincite gemstone creates magical illusions that mimic terrain, confusing foes. Creatures within 30 ft. must make a DC 15 Wisdom saving throw or suffer disadvantage on attacks until the end of their next turn.

Adaptive Aura:
At the start of each turn, the Tyrant’s gemstone emits one of the following auras (determined randomly):

• Pink (Healing): Allies within 20 ft. regain 10 hit points.

• Orange (Radiant): Enemies within 20 ft. must make a DC 16 Constitution saving throw or take 2d8 Radiant damage.

• Blue (Defense): The Tyrant gains +2 AC until the start of its next turn.

• Black (Necrotic): Enemies within 20 ft. take 2d6 necrotic damage.

Gemstone Overload (Once):
When the Chimeric Tyrant drops below half HP, it releases a wave of Zincite shards. Creatures within a 20-ft. radius must make a DC 16 Dexterity saving throw, taking 3d8 piercing damage on a failed save, or half as much on a success. The shards create difficult terrain in the area for 1 minute

Prismatic Surge (Recharge 5–6):
The Chimeric Tyrant unleashes rays of multi-colored light. Each creature in a 30-ft. cone must make a DC 16 Dexterity saving throw. On a failed save, the target takes 4d10 Radiant damage.

Multiattack: The Tyrant makes three attacks: one with its bite, one with its claws, and one with its tail.

Bite: Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit: 18 (2d10 + 5) piercing damage.

Claws: Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 15 (2d8 + 5) slashing damage.

Tail Slam: Melee Weapon Attack: +9 to hit, reach 15 ft., one target. Hit: 17 (2d10 + 5) bludgeoning damage.

Zincite Glow (Recharge 5–6): The gemstone releases a radiant orange aura, granting the Tyrant temporary hit points equal to 10 + its Constitution modifier (14 temporary HP). This glow also forces creatures within 10 feet to succeed on a DC 16 Constitution saving throw or be blinded until the end of their next turn. 

Tail Sweep: The Tyrant uses its powerful tail to knock enemies off balance. Each creature within 10 feet must make a DC 16 Dexterity saving throw or be knocked prone.

Crystal Shard Volley: The Tyrant fires jagged shards of orange zincite at a target within 30 feet. The target must succeed on a DC 15 Dexterity saving throw or take 2d8 piercing damage and 2d6 radiant damage.

Reflective Burst: When hit by a melee attack, the Tyrant can use its reaction to unleash a burst of energy from its gemstone. The attacker must make a DC 16 Dexterity saving throw or take 2d6 radiant damage.

Crystalline Counter: When targeted by a ranged spell attack, the gemstone refracts the spell's energy. The Tyrant gains advantage on the saving throw or attack roll against the spell. On a success, the spell reflects back toward the caster, who must make a saving throw using their own spell's DC.

Evasive Leap: When an enemy moves within 5 feet of the Tyrant, it can leap 20 feet in any direction without provoking opportunity attacks.

Winged Charge (Costs 2 Actions): The Tyrant flies up to 60 ft. and slams into a target, forcing a DC 16 Strength saving throw. On a failed save, the target takes 20 (3d10 + 5) bludgeoning damage and is knocked prone.

Illusory Mirage (Costs 1 Action): The Tyrant projects false images of itself in a 30-ft. radius, forcing creatures to make a DC 15 Wisdom saving throw. On a failure, the Tyrant becomes invisible to the creature until the end of its next turn.

Zincite Pulse (Costs 3 Actions): The gemstone radiates wild magic, affecting all creatures within 30 ft. Roll on the Wild Magic Surge table for each creature (PHB p. 104).