Bahamut, The Platinum Dragon God

Phase 1: Old Disguise. While in Phase 1, Bahamut can cast prepared spells up to 7th level.

Phase 2: Aura of Warding. While in Phase 2, a 20-foot-radius sphere of protective energy surrounds Bahamut. Friendly creatures within this radius have resistance to damage from spells and magical effects.

The Living Anchor (Phase 3). At the start of Phase 3, Bahamut’s current hit points instantly reset to his maximum pool of 666. This feature fails to function only if an enemy spell or special feature explicitly prevents him from regaining hit points or receiving healing.

Aura of Righteousness (Phase 3). A permanent 30-foot-radius sphere of absolute moral authority surrounds Bahamut’s Gargantuan base. Any enemy creature that enters or starts its turn within the aura must succeed on a DC 25 Wisdom saving throw or have its movement speed halved and suffer disadvantage on all weapon attack rolls as the crushing presence of justice disrupts its stance.

The Platinum Awakening: If he takes 333 total damage during this phase, or takes 150 or more damage in a single round of combat, his mortal disguise shatters, instantly forcing him into Phase 2.

The Absolute Apotheosis: If Bahamut’s hit points are reduced to 0 during this phase, or takes 150 or more damage in a single round of combat, his material bindings fail entirely; his current hit points instantly reset back to his absolute maximum pool of 666 as he assumes his true, ultimate divine form.

Multiattack (Phase 1). Bahamut makes two attacks with his Cane Strike or casts one prepared spell up to 7th level.

Cane Strike. Melee Weapon Attack: +13 to hit, reach 5 ft., one target. Hit: 18 (2d10 + 7) bludgeoning damage plus 9 (2d8) radiant damage.

Multiattack (Phase 2). Bahamut makes three attacks: one with his Bite and two with his Claws.

Bite. Melee Weapon Attack: +15 to hit, reach 15 ft., one target. Hit: 29 (4d10 + 7) piercing damage plus 11 (2d10) radiant damage.

Claw. Melee Weapon Attack: +15 to hit, reach 10 ft., one target. Hit: 18 (2d10 + 7) slashing damage.

Multiattack (Phase 3). Bahamut makes three attacks: one with his Sovereign Strike and two with his Platinum Claws. Alternatively, he unleashes one of his Breath Weapons.

Sovereign Strike. Melee Weapon Attack: +19 to hit, reach 20 ft., one target. Hit: 35 (4d12 + 9) slashing damage plus 26 (4d12) radiant damage. If the target is a creature, it must succeed on a DC 27 Strength saving throw or be knocked prone as its balance is completely shattered.

Platinum Claw. Melee Weapon Attack: +19 to hit, reach 15 ft., one target. Hit: 22 (2d12 + 9) slashing damage. Platinum Breath (Recharge 5–6). Bahamut unleashes one of the following breath weapons in a 90-foot cone:

Disintegration Breath. Each creature in the area must make a DC 22 Dexterity saving throw, taking 77 (22d6) force damage on a failed save, or half as much on a successful one.

Gale Breath. Each creature in the area must make a DC 26 Strength saving throw. On a failure, a target is pushed 60 feet away from Bahamut and knocked Prone.

Celestial Shielding Bahamut can use a reaction to increase his Armor Class by 5 against one incoming attack. He can use this reaction once in Phase 1, and up to three times in Phase 2, tracking his spent uses individually.

Absolute Counter-Strike (5). When a creature within 120 feet targets an ally of Bahamut with an attack or spell, Bahamut can use a reaction to unleash a bolt of prismatic light at the triggering creature. The target must succeed on a DC 22 Dexterity saving throw or take 22 (4d10) radiant damage and have its attack roll or spell automatically fail as the blinding light breaks its concentration. Bahamut can use this reaction up to five times.