Imperceivable Appearance: Whenever a creature sees the Aaagrowkl, that creature must make a dc 20 wisdom saving throw. On a fail, the creature takes 3d10 psychic damage and is frightened until the creature stops seeing the Aaagrowkl. On a success, the creature takes half damage and is not frightened. Aberrations are immune to this effect

Non-Euclidian: All space within 10ft of the Aaagrowkl is considered difficult terrain, and is warped into incomprehensible geometries

Many Forms: The Aaagrowkl can cast Polymorph at will, targeting self only, and can only polymorph into a creature of a challenge rating of 8 or lower. It does not require concentration, and the Imperceivable Appearance and Non-Euclidian features are not active while polymorphed. When the Aaagrowkl takes damage while polymorphed, the damage is applied to its standard health as well as the health of its polymorphed form.

Collapse Geometry: A creature within 10ft of the Aaagrowkl must make a dc 20 constitution saving throw. On a fail, the creature takes 8d8 force damage, or half on a success. If a creature is dropped to 0 hp by this attack, their body is torn apart into incomprehensible matter

Shift Space (Recharge 5-6:) The Aaagrowkl teleports to a location within 60ft of it. If a medium or smaller creature is occupying that space, that creature must make a dc 21 dexterity saving throw. On a success, the creature moves to a space within 5ft of the Aaagrowkl. On a fail, the creature becomes restrained. The creature can make a dc 17 strength saving throw on each of its subsequent turns. On a success, the creature is no longer restrained, and moves to a space within 5ft of the Aaagrowkl. While restraining a creature, the Aaagrowkl cannot polymorph, and when it uses Collapse Geometry attack, it can only target the restrained creature