Special Trait: Energy Overdrive

The Abyssal Vanguard possesses a powerful Special Trait called Energy Overdrive, which allows it to tap into an additional reserve of energy to enhance its abilities.

-Description: When the Abyssal Vanguard's hit points drop to 50% or below, it enters Energy Overdrive mode. In this state, its attacks become more devastating, and its defenses are heightened.

- Enhanced Attacks: While in Energy Overdrive mode, the Abyssal Vanguard's melee and ranged attacks gain a +2 bonus to hit and deal an additional 1d8 damage.
- Enhanced Defense: The Abyssal Vanguard's Armor Class increases by 2 while in Energy Overdrive mode.
- Duration: The Energy Overdrive mode lasts for 3 rounds before the Abyssal Vanguard returns to its normal state.

Weaknesses:
1. Overheat Vulnerability: The Abyssal Vanguard's energy weapons can overheat, disabling its attacks temporarily.
2. Core Exposed: Attacking the vulnerable core within the Abyssal Vanguard can deal critical damage and disable its defenses.
3. Environmental Interference: Using terrain features or magic can disrupt the Abyssal Vanguard's targeting and defenses.

 Actions:

1. Multiattack: The Abyssal Vanguard can make two attacks in one turn. It can choose to make two melee attacks or one melee attack and one ranged attack.

2. Colossal Blade Strike: The Abyssal Vanguard delivers a powerful melee strike with its colossal blade. It swings the blade with incredible force, aiming to cleave through its targets. Melee Weapon Attack: +10 to hit, reach 15 ft., one target. *Hit:* 6d10 + 6 slashing damage.

3. Homing Missiles: The Abyssal Vanguard launches a barrage of homing missiles towards its enemies, seeking to cause widespread destruction. *Ranged Weapon Attack:* +6 to hit, range 300 ft., multiple targets. Hit:4d12 + 3 force damage per missile.

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Bonus Action: Energy Surge

The Abyssal Vanguard can tap into its internal energy reserves and unleash a surge of power as a bonus action.

- Description: The Abyssal Vanguard taps into its internal energy reserves, unleashing a surge of power for a brief moment.
- Effect: Upon activating the Energy Surge, the Abyssal Vanguard gains a temporary boost in combat prowess, enhancing its attacks and abilities for a limited duration.
- Enhanced Attacks: While under the effect of the Energy Surge, the Abyssal Vanguard's melee and ranged attacks gain a +2 bonus to hit and deal an additional 1d6 damage.
- Duration: The Energy Surge lasts for 1 minute, after which the Abyssal Vanguard must wait for a short rest before it can use this ability again.

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Energy Shield: The Abyssal Vanguard can use its energy shield as a reaction when it is hit by an attack. The shield activates in response to the incoming attack, creating a protective barrier of energy that reduces the damage taken.

- Description: When the Abyssal Vanguard is hit by an attack, it can quickly activate its energy shield in response. The shield envelops the construct, reducing the damage taken from the triggering attack.

- Damage Reduction: The energy shield grants the Abyssal Vanguard resistance against the damage dealt by the triggering attack.
- Limited Usage: The energy shield can be used as a reaction once per round.

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Legendary Actions:
The Abyssal Vanguard can take 2 Legendary Actions per turn:
- Overdrive (1 Action): The Abyssal Vanguard gains an additional melee attack during its turn.
- Adaptive Tactics (1 Action):The Abyssal Vanguard adjusts its tactics, gaining advantage on its next attack roll or saving throw.

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Mythic Action Name (Costs # Actions). Enter the description for your mythic action.