Cromox: The Voice Of The Damned

Legendary Resistance (3/day). If Cromax fails a saving throw, it can choose to succeed instead.

Tunneler. Cromax can burrow through solid rock at half its burrowing speed and leaves an 8 ft. diameter in his wake.

Frightful Presence. Each creature of Cromax's choice within 120 feet of him and aware of it must succeed on a DC 25 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature's saving throw is successful or the effect ends for it, the creature is immune to Cromax's Frightful Presence for the next 24 hours.

Secrets of the Damned. Cromax can choose one target within a 1000ft radius and peer into its mind, learning its deepest fears and desires. Once Cromax selects a target, it can hear its thoughts and use that knowledge to tailor its deception. The targeted creature will hear a voice that is familiar to them, speaking in a tone that they trust. This makes it incredibly difficult to resist Cromax's manipulations, and those who fall prey to its Secrets of the Damned often become pawns in its twisted schemes.

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

Magic Weapons. Cromax's weapon attacks are magical.

Innate Spellcasting. Cromax's spellcasting ability is Charisma (spell save DC 24, +16 to hit with spell attacks). It can innately cast the following spells, requiring no material components:

At will: detect magic, dispel magic, detect thoughts, fire bolt, vicious mockery, acid splash, chill touch, poison spray, ray of frost

3/day each: darkness, hunger of hadar, ray of enfeeblement, confusion, wall of force

2/day each: dominate monster, invisibility, blight, force cage, ice storm, black tentacles

1/day each: circle of death, finger of death, power word stun, prismatic spray, reality break, wish

Multiattack. Cromax can use its Frightful Presence. It then makes three attacks: one with its bite and two with its spikes.

Bite. Melee Weapon Attack: +20 to hit, reach 10 ft., one creature. Hit: 35 (4d10 + 10) piercing damage and the target must succeed on a DC 25 Constitution saving throw or take an additional 14 (4d6) poison damage.

Spike. Melee Weapon Attack: +20 to hit, reach 10 ft., one target. Hit: 30 (4d8 + 10) slashing damage.

Acid Spray. Cromax can spray a stream of acid from its mandibles in a 60ft cone. Each creature in that area must make a DC 25 Dexterity saving throw, taking 55 (8d10) acid damage on a failed save, or half as much damage on a successful one. Additionally, any flammable objects in the area that aren't being worn or carried are dissolved by the acid. This action can be used once per round.

Psychic Blast (Recharge 5-6). Cromax can release a blast of psychic energy that travels 100 feet around it. Creatures inside the blast area must make a DC 25 Wisdom saving throw, taking 55 (8d10) psychic damage on a failed save, or half as much damage on a successful one. Those that fail the save are also stunned for one round.

Burrow. Cromax can burrow underground for a distance of 200 ft. to an unoccupied space it can see. It then will unearth causing the ground in an area of 50 ft to burst open. Creatures within that area must make a DC 27 Dexterity saving throw, if successful the creature is pushed back 40 ft. and takes 9 (2d8) force damage. If failed, the creature takes 18 (4d8) force damage, is pushed back 40 ft. and is forced prone.

Chitinous Defense. When attacked with a physical weapon, Cromax can instantly sprout a protective layer of chitinous armour, granting resistance to that attack.

Chittering Fury. When an enemy deals damage to Cromax, it can use his reaction to unleash a chittering fury, causing the attacker to make a DC 25 Wisdom saving throw or become frightened of Cromax for one minute. While frightened, the creature cannot willingly move closer to Cromax and has disadvantage on all attacks against him. The creature can repeat the saving throw at the end of each of its turns, ending the effect on a success.

Cromax can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. Cromax regains spent legendary actions at the start of its turn.

Legendary Actions

Bite. Cromax makes one attack with its bite.

Cataclysmic Roar (Costs 1 action). The Voice of the Damned unleashes a deafening roar. Each creature within 120 feet of him and able to hear it must succeed on a DC 27 Constitution saving throw or take  55 (10d10) thunder damage and become deafened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. Structures within 500 feet of Cromax that aren't being worn or carried take 22 (4d10) thunder damage.

Summon Demon (Costs 2 actions). Cromax summons one demon of CR 15 or lower. The summoned creature appears in an unoccupied space within 120 feet of it and acts immediately, rolling its own initiative.

Devouring Strike (Costs 3 actions). Cromax can use this action to make a bite attack against a creature within reach. If the bite attack hits, the target takes damage as determined by the Cromax's bite attack and must make a Dexterity saving throw with a DC equal to the fiend's bite attack DC. On a failed save, the target is swallowed whole by Cromax and takes additional damage at the start of each of Cromax's turns until they are freed. The swallowed target is blinded and restrained, has total cover against attacks and other effects outside Cromax, and takes 30 (6d8) acid damage at the start of each of the Cromax's turns. The swallowed target can attempt to escape Cromax's gullet by using their action to make a DC 20 Strength check. Alternatively, another creature can use their action to cut Cromax's gullet open and free the swallowed creature. Cromax's gullet has an AC of 25 and 200 hit points. There can only be one creature in its gullet at a time. Once its gullet is cut open he can no longer use Devouring Strike.

Voice of the Damned (Costs 3 actions). Cromax can use the knowledge he has gained from Secrets of the Damned to charm the target. The target must make a Wisdom saving throw (DC 27) to resist the effect. If the target succeeds, it only takes 18 (4d8) psychic damage but If the target fails, it takes the damage and becomes charmed by Cromax and begins to move towards it. Cromax can use an action on his next turn to control the target's actions for one minute causing them to use any physical attack or spell the target has available at any other target Cromax chooses. This effect can only be used once per target and cannot be used on creatures immune to being charmed.