Sure-Footed. The skeleton has advantage on Strength and Dexterity saving throws made against effects that make it have the prone condition.
Battleaxe. 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.