Calamitas & Yvonne

Energy Shield. Calamitas is surrounded by an energy shield that blocks all attacks towards Calamitas. The shield has AC 22 and 180 HP, and regains 30 HP at the start of each of its turns. If the shield is at 0 HP, and Calamitas takes necrotic damage, the shield shuts down its regeneration for 1d4 rounds.

Magic Deflection. If a harmful spell targets Calamitas, roll a d6. On a 1-5, the spell does nothing to Calamitas, and is harmlessly flung away. On a 6, the spell instead targets the caster.

Magical Resistance. Calamitas & Yvonne have advantage on any Intelligence, Charisma, or Wisdom saving throws against magical affects.

Two Minds. Calamitas and Yvonne are two separate entities that each roll separate initiative and have their own turns. Yvonne is immune to damage until Calamitas is reduced to 0 HP, which resets Calamitas' HP to full and places Yvonne on a space within 10 feet of Calamitas. Even after this, Yvonne can still control Calamitas' actions on her turn as a bonus action.

Watchful and Ready. Calamitas can take the Disengage and Dodge actions as a bonus action. Yvonne can make Calamitas take the Dodge or Dash actions as a bonus action on her turn.

Multiattack. Calamitas makes three Gygas Launcher attacks and three Tesla Cannon attacks. Yvonne makes three Acidweb Grenade attacks and three Cryo Cannon attacks.

Gygas Launcher Melee Weapon Attack: +12 to hit, reach 10 ft., 1 target. Hit: 46 (6d10+13) bludgeoning damage plus 22 (4d10) poison damage, and the target if flung back 120 ft.

Plasma Cannon. Ranged Weapon Attack: +12 to hit, range 600/3600 ft., up to 3 targets within 10 ft of each other. Hit: 39 (4d12+13) lightning damage, and the target is paralyzed until the end of its next turn.

Cryo Cannon. Ranged Weapon Attack: +12 to hit, range 600/3600 ft., up to 2 targets within 20 ft. of each other. Hit: 39 (4d12+13) cold damage. Regardless of hit or miss, the cannon extinguishes all flames, magical or otherwise, within a 120 ft. radius of the target(s). The ground in that radius is covered in magical frost, dealing 1d4 cold damage to any creature that starts its turn there, and makes it impossible to produce any kind of flame. The frost lasts for 10 minutes.

Acidweb Grenade. Yvonne makes Calamitas launch a ball that bursts into a 60-foot diameter sphere of sticky webbing, which counts as difficult terrain. Any creatures within that radius of where the grenade is thrown must make a DC 22 Dexterity saving throw or take 11 (2d10) acid damage be restrained. A restrained creature can attempt a DC 22 Strength check to break the webs once per turn, and takes another 11 (2d10) acid damage at the start of its turn.

Snaring Missles.  Yvonne makes Calamitas shoot a volley of 14 missiles that each target one enemy within 360 feet of it. Each missile deals 11 (2d10) piercing damage to its target, as well as restraining them. A restrained creature can make a DC 17 Strength check to break out.

Acidmines. Calamitas magically plants Acidweb Grenades in the ground in a 120-foot diameter circle around a point it can see. Any enemy creature that enters the effected area must make a DC 22 Dexterity saving throw or take 11 (2d10) acid damage and become restrained. A restrained creature can make a DC 22 Strength check to escape, taking another 11 (2d10) acid damage on a failure.

"The Void Star". Calamitas launches a ball of pure Void at a point it can see. Upon impact with a solid surface, the star explodes into a 120-foot diameter sphere of magical energy. All creatures in the area must make a DC 25 Dexterity saving throw, taking 165 (32d10) necrotic damage on a failed save, or half as much on a successful one.

Call of Calamity (Once per Day). Calamitas summons spectral versions of both Catastrophe and Cataclysm to aid it in battle. These apparitions last until defeated, and Calamitas becomes immune to all damage until both are slain. While both apparitions are alive, Calamitas and Yvonne are incapable of performing any kind of action.

Teleport. Calamitas & Yvonne teleport to a point Yvonne can see within 360 ft. of herself.

Parry. When Calamitas is targeted by an attack, they can spend their reaction to increase their AC by 4 against that attack. Additionally, Yvonne can spend her reaction to make Calamitas parry.