Undead Fortitude. If damage reduces the zombie to 0 hit points, it must make a Constitution saving throw with a DC of 5 + the damage taken, unless the damage is radiant or from a critical hit. On a success, the zombie drops to 1 hit point instead.

Ares' shield. a shield that can switch to a gauntlet in shield form + 2 AC in gauntlet form + 1 to Dex saving throws it can only have one form at a time

Actions. The captain can make up to two actions

Battleaxe. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 5 (1d8 one handed, 1d10 two handed) slashing damage.

Fearful Toxin. Melee attack: +2 to hit, range 5 ft., one target, the dead pirate exhales a black cloud the target must make a wisdom saving throw if failed the target is frightened  and takes (2d6 psychic damage) if succeeded the target only takes half damage.