Awakening of the Scion.

The cradle is a container for the scion of Memnor. When the cradle drops to 0 hit points, its body dissipates into cloud wisps. The scion instantly appears in the space the cradle occupied and uses the cradle's initiative count.

Flyby.

The cradle doesn't provoke opportunity attacks when it flies out of an enemy's reach.

Legendary Resistance (5/Day).

If the cradle fails a saving throw, it can choose to succeed instead.

Magic Resistance.

The cradle has advantage on saving throws against spells and other magical effects.

Siege Monster.

The cradle deals double damage to objects and structures.

Actions

Multiattack.

The cradle makes three Slam or Wind Javelin attacks in any combination.

Slam.

Melee Weapon Attack: +17 to hit, reach 20 ft., one target. Hit: 31 (4d10 + 9) bludgeoning damage plus 19 (3d12) thunder damage.

Wind Javelin.

Ranged Weapon Attack: +17 to hit, range 120 ft., one target. Hit: 27 (4d8 + 9) bludgeoning damage plus 10 (3d6) thunder damage, and the target must succeed on a DC 25 Strength saving throw or have the prone condition.

Vortex (Recharge 5–6).

The cradle conjures a vortex of wind at a point it can see within 90 feet of itself. The wind vortex is a 30-foot-radius, 100-foot-high cylinder centered on that point. Each creature other than the cradle in that area must make a DC 25 Dexterity saving throw. On a failed save, a creature takes 71 (11d12) bludgeoning damage and has the restrained condition within the vortex. On a successful save, a creature takes half as much damage and is pushed to the nearest unoccupied space outside the cylinder. The vortex lasts until the start of the cradle's next turn. A creature with the restrained condition falls prone when the vortex ends.

A creature with the restrained condition can use its action to try to escape the vortex. The creature makes a DC 19 Strength (Athletics) or Dexterity (Acrobatics) check. On a successful check, the creature escapes and moves 3d6 × 10 feet away from the vortex in a random direction.

Reactions

Thunderclap.

Immediately after taking damage, the cradle unleashes a thunderclap in a 30-foot-radius sphere centered on itself. All other creatures in that area must succeed on a DC 25 Constitution saving throw or take 18 (4d8) thunder damage and have the deafened condition for 1 minute.

Regional Effects

The region surrounding a scion of Memnor is altered by the giant's magic, creating one or more of the following effects:

Compulsory Offering. The first time a sapient creature comes within 6 miles of the scion, the creature must succeed on a DC 15 Wisdom saving throw or feel an overwhelming compulsion to leave an offering worth at least 5 gp stashed in an out-of-the-way place. Cloud giants within 6 miles of the cradle or scion immediately sense the location of this gift. A creature can be affected only once by this compulsion.
Empowered Cloud Giants. Cloud giants within 1,000 feet of the scion gain a +8 bonus to attack and damage rolls.
Mischievous Whispers. Whispers can be heard on the wind within 1 mile of the scion. The words are indistinct, but a creature with an Intelligence score of 5 or higher interprets them as instructions for a prank they can play on others.

If the scion dies, these effects end immediately.

Cradle of the Cloud Scion