Four Armed. The skeleton can cling to objects or surfaces and still have two free hands.
Extreme Tumbling. The skeleton has advantage against effects and abilities that would knock it prone.
Handsy. The skeleton has advantage to grapple another creature of its size or smaller.
Shortsword. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) piercing damage.
Roll to hit: 1d20+4 Roll damage: 1d6+2
Shortbow. Ranged Weapon Attack: +4 to hit, range 80/320 ft., one target. Hit: 5 (1d6 + 2) piercing damage.
Roll to hit: 1d20+4 Roll damage: 1d6+2