Marilith
large Fiend (Demon)
Armor Class 18 (natural armor)
Hit Points 217
Speed walk +40
Challenge 16
Saving Throws cha +10, con +10, dex +5, int +4, str +9, wis +8
Damage Resistances bludgeoning,piercing,and slashing damage from nonmagical attacks,Demonic Resilience
Damage Immunities Demonic Resilience
Senses truesight 120 ft.
Languages Abyssal,telepathy 120 ft.
Special Abilities
Demonic Resilience. The marilith is resistant to cold, fire, and lightning damage. In addition, it is immune to poison damage and to the poisoned condition.
Flaming Weapons. The marilith's weapon attacks are magical. When it hits with any weapon, the weapon deals an extra 2d6 fire damage (included in the attack).
Magic Resistance. The marilith has advantage on saves against spells and other magical effects.
Reactive. The marilith gets up to five extra reactions, but these extra reactions can be used only for Parry.
Actions
Multiattack. The marilith makes two Dagger attacks, two Mace attacks, and two Longsword attacks. It can replace two Dagger attacks with a Tail attack.
Dagger. _Melee or Ranged Weapon Attack:_ +9 to hit, reach 5 ft. or range 20/60 ft., one target. _Hit:_ 9 (2d4+4) piercing damage plus 7 (2d6) fire damage.
Mace. _Melee Weapon Attack:_ +9 to hit, reach 5 ft., one target. _Hit:_ 11 (2d6+4) bludgeoning damage plus 7 (2d6) fire damage.
Longsword. _Melee Weapon Attack:_ +9 to hit, reach 5 ft., one target. _Hit:_ 13 (2d8+4) slashing damage plus 7 (2d6) fire damage.
Tail. _Melee Weapon Attack:_ +9 to hit, reach 10 ft., one creature. _Hit:_ 20 (3d10+4) bludgeoning damage plus 7 (2d6) fire damage. If the target is Medium or smaller, it is grappled (escape DC 17). Until this grapple ends, the target is restrained, the marilith can automatically hit the target with its Tail, and the marilith can't make Tail attacks against other targets.
Bonus Actions
Marilith Tactics. The marilith shouts one of the following commands at up to two friendly creatures it can see within 30 feet of it: - **March!** Each target can use a reaction to move up to half its speed in a direction of the marilith's choice. This movement is unaffected by difficult terrain and doesn't provoke opportunity attacks. - **Protect Yourself!** Each target gains the marilith's Parry reaction until the start of the marilith's next turn. - **Remember Your Training!** Each target has advantage on the next weapon attack roll it makes before the start of the marilith's next turn.
Teleport. The marilith magically teleports, along with any equipment it is wearing or carrying, up to 60 feet to an unoccupied space it can see.
Reactions
Parry. The marilith adds 5 to its AC against one melee attack that would hit it. To do so, the marilith must see the attacker and be wielding a melee weapon.
Source: Black Flag SRD · OGL/Open