Innate Spellcasting. The Ultroloth innate spellcasting ability is Charisma (spell save DC 17). The ultroloth can innately cast the following spells, requiring no material components: 3/day each: dimension door, fear, wall of fire 1/day: fire storm, mass suggestion
Magic Resistance. The Ultroloth has advantage on saving throws against spells and other magical effects. Magic Weapons. The Ultroloth's weapon attacks are magical.
Multiattack. The Ultroloth can use its Hypnotic Gaze and makes three melee attacks. Longsword. Melee Weapon Attack: +8 to hit, reach 5ft, one target, Hit: 7 (1d8+3) slashing damage, or 8 (1d10+3) slashing damage if used with two hands. Hypnotic Gaze. The ultroloth's eyes sparkle with opalescent light as it targets one creature it can see within 30ft 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 gate for the next 24 hours. Teleport. The ultroloth magically teleports, along with any equipment it is wearing or carrying, up to 60ft to an unoccupied space it can see.