Armor Class 15 (Graz'zt's gift)
Hit Points 99 (18d8 + 18)
Speed 30 ft.
Saving Throws DEX +5, WIS +3
Skills Arcana +5, Deception +6, Performance +6
Damage Resistances fire
Senses darkvision 60 ft., passive Perception 10
Languages Abyssal, Common
Challenge 7
Fear of Frogs and Toads. Sythian is frightened while he is within 20 feet of a frog or a toad (of any size) that he can see.
Graz'zt's Gift. Sythian's AC includes his Charisma modifier.
Multiattack. Sythian makes two Poisoned Shortsword or Poisoned Dart attacks and uses Whispers of Azzagrat.
Poisoned Shortsword. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) piercing damage plus 5 (1d10) poison damage.
Poisoned Dart. Ranged Weapon Attack: +5 to hit, range 20/60 ft., one target. Hit: 4 (1d4 + 2) piercing damage plus 5 (1d10) poison damage.
Whispers of Azzagrat. Each creature in a 15-foot cube originating from Sythian must make a DC 14 Wisdom saving throw. On a failed save, a creature takes 18 (4d8) psychic damage and is incapacitated until the end of its next turn. On a successful save, the creature takes half as much damage and isn't incapacitated.
Fiendish Rebuke (3/Day). Immediately after a creature within 5 feet of Sythian hits him with an attack roll, Sythian forces that creature to make a DC 14 Constitution saving throw. The creature takes 14 (4d6) fire damage on a failed saving throw, or half as much damage on a successful one.
KftGV, p. 117