Construct Dragon

Legendary Resistance (2/Day). If the dragon fails a saving throw, it can choose to succeed instead.

Cogs of Fate (1/Day). The dragon can adjust fate, rolling 2d6 and adding or subtracting that from another creature's roll.

Cogs of Time (Recharge 6). The dragon can adjust time, giving it a second attack on its turn.

Multiattack. The dragon can use its Grinding Cogs. It then makes three attacks: one with its bite and two with its claws.

Bite. Melee Weapon Attack: +14 to hit, reach 10 ft., one target. Hit: 25 (3d10 + 8) piercing damage.

Claw. Melee Weapon Attack: +14 to hit, reach 5 ft., one target. Hit: 15 (2d6 + 8) slashing damage.

Tail. Melee Weapon Attack: +14 to hit, reach 15 ft., one target. Hit: 17 (2d8 + 8) bludgeoning damage.

Grinding Cogs (3/Day) Each creature that is within 60 feet of the dragon must succeed on a DC 19 Constitution saving throw or become stunned for 1 minute and take 20 (4d10) thunder damage as it speeds up some of its internal gears and slows others down, causing a near-unbearable screeching noise.. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

The dragon 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. The dragon regains spent legendary actions at the start of its turn.

Detect. The dragon makes a Wisdom (Perception) check.

Tail Attack. The dragon makes a tail attack.

Wing Attack (Costs 2 Actions). The dragon beats its wings. Each creature within 10 feet of the dragon must succeed on a DC 22 Dexterity saving throw or take 15 (2d6 + 8) bludgeoning damage and be knocked prone. The dragon can then fly up to half its flying speed.