Zahmeer

Armor Class 19 (natural armor)

Hit Points 300 (24d10 + 168)

Speed 30 ft., fly 60 ft.

STR

26 (+8)

DEX

16 (+3)

CON

24 (+7)

INT

23 (+6)

WIS

18 (+4)

CHA

24 (+7)

Saving Throws DEX +8, CON +12, INT +11, WIS +9, CHA +12

Damage Resistances Cold, Psychic; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks that aren't Silvered, Damage from Spells

Damage Immunities Fire, Poison

Condition Immunities

Senses 240 ft., 15 ft, 120 ft., Passive Perception 31

Languages Infernal, Telepathy 120 ft.

Challenge 15 (13,000 XP)

Proficiency Bonus +5

Traits

Fear Aura. Any creature hostile to Zahmeer that starts its turn within 20 feet of him must make a DC 21 Wisdom saving throw, unless Zahmeer is incapacitated. On a failed save, the creature is frightened until the start of its next turn. If a creature's saving throw is successful, the creature is immune to Zahmeer's Fear Aura for the next 24 hours.

Magic Resistance. Zahmeer has advantage on saving throws against spells and other magical effects.

Magic Weapons. Zahmeer's weapon attacks are magical.

Innate Spellcasting. Zahmeer is a 15-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 23, +16 to hit with spell attacks). Zahmeer has following spells prepared:

At will: fire shield, magnify gravity, pulse wave, magic missile

3/day each: hold monster, gravity sinkhole, temporal shunt

1/day each: time stop, reality break, dark star

Actions

Multiattack. Zahmeer makes four attacks: one with its bite or with its claw, one with its spear, and one spell attack of 5th level or lower.

Bite. Melee Weapon Attack: +14 to hit, reach 5 ft., one target. Hit: 22 (4d6 + 8) piercing damage. The target must succeed on a DC 21 Constitution saving throw or become poisoned. While poisoned in this way, the target can't regain hit points, and it takes 21 (6d6) poison damage at the start of each of its turns. The poisoned target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Claw. Melee Weapon Attack: +14 to hit, reach 10 ft., one target. Hit: 17 (2d8 + 8) slashing damage.

Spear. Melee Weapon Attack: +14 to hit, reach 10 ft., one target. Hit: 15 (2d6 + 8) piercing damage plus 21 (6d6) force damage.

Tail. Melee Weapon Attack: +14 to hit, reach 10 ft., one target. Hit: 24 (3d10 + 8) bludgeoning damage.

Bonus Actions

Bladesong (1/Short Rest). As a bonus action, Zahmeer can activate his Bladesong, which lasts for 1 minute. While Bladesong is active, the Zahmeer gains the following benefits:
- +6 bonus to AC.
- His speed increases by 10 feet.
- He has advantage on Dexterity (Acrobatics) checks.
- He gains advantage on Constitution saving throws made to maintain concentration on a spell.

Zahmeer can use this feature once per short or long rest.

Reactions

Chronal Shift. When a creature Zahmeer can see makes an attack roll, ability check, or saving throw, Zahmeer can use its reaction to force that creature to reroll. The creature must use the new roll.