Magic Resistance. Jijibisha has advantage on saving throws against spells and other magical effects.

Magic Weapons. Jijibisha's weapon attacks are magical.

Innate Spellcasting. Jijibisha's innate spellcasting ability is Charisma (spell save DC 17). The ultroloth can innately cast the following spells, requiring no material components:

At will: alter self, clairvoyance, darkness, detect magic, detect thoughts, dispel magic, invisibility (self only), suggestion

1/day each: fire storm, mass suggestion

3/day each: dimension door, fear, wall of fire

Multiattack. Jijibisha can use its Hypnotic Gaze and makes three melee attacks.

Longsword. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit:7 (1d8 + 3) slashing damage, or 8 (1d10 + 3) slashing damage if used with two hands.

Hypnotic Gaze. Jijibisha's eyes sparkle with opalescent light as it targets one creature it can see within 30 feet of it. If the target can see the ultroloth, the target must succeed on a DC 17 Wisdom saving throw against this magic or be charmed until the end of the ultroloth's next turn. The charmed target is stunned. If the target's saving throw is successful, the target is immune to the ultroloth's gaze for the next 24 hours.

Teleport. Jijibisha magically teleports, along with any equipment it is wearing or carrying, up to 60 feet to an unoccupied space it can see.