Multiattack. Markos makes two Ceremonial Blade attacks, two Psychic Orb attacks, or one of each.

Ceremonial Blade. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) piercing damage plus 3 (1d6) poison damage. If the target is a creature, it must succeed on a DC 13 Constitution saving throw or become poisoned for 1 minute. The creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Psychic Orb. Ranged Spell Attack: +5 to hit, range 60 ft., one creature. Hit: 10 (2d6 + 3) psychic damage.

Swap Space. Markos targets one Medium or Small creature he can see within 30 feet of himself. The target must succeed on a DC 13 Constitution saving throw or it teleports, along with any equipment it is wearing or carrying, exchanging positions with Markos.