Ainentara's innate spellcasting ability is Intelligence (spell save DC 25, +17 to hit with spell attacks). It can innately cast the following spells, requiring no material components:
Interdimensional Movement. Ainentara can use misty step as a bonus action once per round. Cosmic Traveler. Ainentara requires no air, warmth, ambient pressure, food, or water, enabling it to travel safely through interstellar space and similar voids. Magic Resistance. Ainentara has advantage on saving throws against spells and other magical effects.
Empowered Filament Claws. Melee Weapon Attack. +12 to hit, reach 40 ft., one target. Hit: 20 (4d12 +7) slashing damage plus 18 (3d10) necrotic damage. Dimensional Displacement Punch. Melee Weapon Attack: +12 to hit, reach 5 ft., one target. Hit: 18 (2d20 + 7) bludgeoning damage, and the target must make a successful DC 25 Dexterity saving throw or be teleported to a new location as if affected by the dimension door spell. The destination is chosen by random, but it cannot be in the same space as another object or creature.
Ainentara can take 4 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. Ainentara regains spent legendary actions at the start of its turn. Shaper of Earth (Costs 2 Actions). Ainentara commands the earthbones her kind helped to shape in the first place. Ainentara gathers cosmic dust, particles and rubble around her and commands it solidify into a 10ft radius, 25ft tall pillar. When it appears, each creature in it's space must make a DC 20 Dexterity saving Throw. On a successful save, a creature is ejected from that space to the nearest unoccupied space of the creature's choice outside it. On a failed save, a creature takes 10 (3d6) bludgeoning damage and is restrained and is encased inside the pillar. A creature restrained like this, can use it's action to make a DC 20 Strength check to break free. The pillar can be damaged and it has AC 15 and 70 hitpoints. When reduced to 0, it crumbles to dust. Caller of Souls (Costs 2 Actions). Ainentara can manifest one of her chosen followers to aid her in battle. Attack (Costs 1 Action). Ainentara makes either a Claw or a Punch attack.