Low Cunning. The xvart can take the Disengage action as a bonus action on each of its turns.

Overbearing Pack. The xvart has advantage on Strength (Athletics) checks to shove a creature if at least one of the xvart's allies is within 5 feet of the target and the ally isn't incapacitated.

Raxivort's Tongue. The xvart can communicate with ordinary bats and rats, as well as giant bats and giant rats.

Innate Spellcasting. The xvart's innate spellcasting ability is Charisma. it can innately cast the following spells, requiring no material components:

At will: detect magic, mage armor (self only)

Spellcasting. The xvart is a 3rd-level spellcaster. Its spellcasting ability is Charisma (spell save DC 11, +3 to hit with spell attacks). It regains its expended spell slots when it finishes a short or long rest. It knows the following warlock spells:

Cantrips (at will): eldritch blast, mage hand, minor illusion, poison spray, prestidigitation

1st–2nd level (2 slots): burning hands, expeditious retreat, invisibility, scorching ray

Scimitar. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit:5 (1d6 + 2) slashing damage.