Benjamin, Duplicitous Naval Officer

Innate Spellcasting (Psionics). Benjamin's innate spellcasting ability is Intelligence (spell save DC 16, +8 to hit with spell attacks). He can innately cast the following spells, requiring no components:

At will: Mage Hand (the hand is invisible)

3/day each: Jump, Levitate (self only), Misty step, Nondetection (self only)

1/day each: Bigby's Hand, Mass Suggestion, Plane Shift, Telekinesis

Multiattack. Benjamin makes two greatsword attacks.

Silver Greatsword. Melee Weapon Attack: +12 to hit, reach 5 ft., one target. Hit: 14 (2d6 + 7) slashing damage plus 17 (5d6) psychic damage. On a critical hit against a target in an astral body (as with the astral projection spell), Benjamin can cut the silvery cord that tethers the target to its material body, instead of dealing damage.

Astral Step. Benjamin teleports, along with any equipment it is wearing or carrying, up to 30 feet to an unoccupied space it can see.

Parry. Benjamin adds 5 to its AC against one melee attack that would hit it. To do so, Benjamin must see the attacker and be wielding a melee weapon.

Benjamin, Duplicitous Naval Officer can take 3 Legendary Actions, choosing from the options below. Only one Legendary Action can be used at a time and only at the end of another creature's turn. Benjamin, Duplicitous Naval Officer regains spent Legendary Actions at the start of its turn.

Attack (2 Actions). Benjamin make a greatsword attack. 

Summon Allies (3 Actions). Benjamin uses his military influence to call for reinforcement. Roll a d4, a number of Hobgoblins equal to the outcome of the die roll appear in the same room as Benjamin at the room's extremities. If Benjamin is not in a room, they appear 60ft. from Benjamin, Duplicitous Naval Officer. The summoned creatures are friendly towards Benjamin, Duplicitous Naval Officer. They act on their own initiative, which is determined when they are summoned.

Command Ally. Benjamin targets one ally it can see within 30ft. of himself. If the target can see or hear Benjamin, Duplicitous Naval Officer, the target can make one melee weapon attack using its reaction and has advantage on the next attack roll.