Gnome Cunning. Mev has advantage on all Intelligence, Wisdom, and Charisma saving throws against magic.
Stone Camouflage. Mev has advantage on Dexterity (Stealth) checks to hide in rocky terrain.
Innate Spellcasting. Mev's innate spellcasting ability is Intelligence (spell save DC 10). Mev can innately cast the following spells, requiring no material components:
At will: nondetection (self only)
1/day each: blindness/deafness, blur, disguise self
Multiattack. Mev makes two longsword attacks. If it has a shortsword drawn, it can also make a shortsword attack.
Longsword. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit:7 (1d8 + 3) slashing damage, or 8 (1d10 + 3) slashing damage if used with two hands.
Shortsword. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit:6 (1d6 + 3) piercing damage.
Heavy Crossbow. Ranged Weapon Attack: +3 to hit, range 100/400 ft., one target. Hit:6 (1d10 + 1) piercing damage.