Alba Nigrum

Amphibious. The dragon can breathe air and water.

Decaying. The dragon is decaying from a faulty body. take 5 necrotic damage at the end of each of its turn.

Adaptation. The dragons constantly warping body results in armour forming when it is struck. Each time Alba nigrum takes damage its AC increases by 1 maxing at 22. If hit by a critical attack decrease its AC by 2.

Multiattack. The dragon makes three attacks: one with its bite and two with its claws.

Substitution. The dragon can change 1 bite attack for a breath attack instead.

Bite. Melee Weapon Attack: +7 to hit, reach 10 ft., one target. Hit: 15 (2d10 + 4) piercing damage plus 4 (1d8) acid damage.

Claw. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) slashing damage.

Acid Breath (Recharge 5–6). The dragon exhales acid in a 30­-foot line that is 5 feet wide. Each creature in that line must make a DC 14 Dexterity saving throw, taking 49 (11d8) acid damage on a failed save, or half as much damage on a successful one.

Frost Breath (Recharge 5–6). The dragon exhales ice in a 15­-foot cone. Each creature in that cone must make a DC 14 Dexterity saving throw, taking 49 (11d8) cold damage on a failed save, or half as much damage on a successful one.

Eldritch Breath (Recharge 5–6). The dragon exhales eldritch power in a 30­-foot line. Each creature in that line must make a DC 14 Dexterity saving throw, taking 49 (5d8) force damage on a failed save, or half as much damage on a successful one. Anything hit by this attack is pushed back 30ft and have reduced movement speed by 10ft until the end of the round.

Hellish rebuke

Dispel magic