Vaeril, Herald of the Hollow Pact

Fanir’s Suffering. (Recharge 5–6) 30 ft. radius; Make a DC 18 Con save. 35 (6d10) [Psychic] damage poisoned for 1 minute on a failed save or half damage and no poison on a successful save.

Pact of Fanir’s Gift. (1/short rest) 60 ft.; Make a DC 18 Cha save or take 35 (6d10) [Psychic] damage and be slowed/frightened (1 min).

Fanir’s Curse. (Bonus, 1/target/short rest) +1d10 necrotic vs. target, disadvantage on saves, heal 30 HP on death.

Multi Attack. 2 Eldritch Sword attacks (3 in Mythic Form).

Eldritch Sword. Melee Weapon Attack: +11 to hit, reach 10 ft., 1 target. Hit: 20 (3d10 + 6) [Slashing] damage + 11 (2d10) [Necrotic] damage. Make a DC 18 Con save or be poisoned for 1 minute.

Eldritch Blast. Ranged Spell Attack 3 blasts: +11 to hit, range 300 ft., 1 target. Hit: 11 (2d10) [Force] damage + 3 (1d6) [Necrotic] damage. Make a DC 18 Con save or have disadvantage on next save. 

Eldritch Blast. Reality Shred (Mythic Form). Ranged Spell Attack 4 blasts: +11 to hit, range 300 ft., 1 target. Hit: 15 (3d10) [Force] damage + 6 (2d6) [Necrotic] damage. Make a DC 18 Con save or become blind. Multiple hits/failed saves results in -1 AC. The AC loss can stack and requires a DC 18 CON save at the end of the players turn to revert. 

Forbidden Word. 60 ft.; DC 18 Wis save or be stunned (1 turn).

Pact of the Chain: Shade Familiar. Advantage on concentration; 1/day counter spell (reaction, +8).

Enter the description for how legendary actions work for your monster here.

Eldritch Lash (Costs 1 Actions). DC 18 Dex save or 23 (4d10) [Force] damage and be pulled 10 ft. towards Vaeril.

Eyes of Fanir (Costs 2 Actions). DC 18 Wis save or be frightened for 1 minute and concentration checks are made at disadvantage. On a save target is frightened until end of their next turn. 

Hollow Echo (Costs 3 Actions). Reuse on Pact feature used this round.  

Avatar of Fanir. Use 1 Mythic Action per turn. 

When reduced to 0 HP for the first time, Vaeril undergoes a grotesque transformation. His body warps further, his jaw splits open, and shadows coil around him like armor. He gains the following:

• Regain 100 HP

• Armor Class increases to 23 (Eldritch Carapace)

• Multiattack Upgrade: Vaeril can make three Eldritch Sword attacks or replace one sword attack with Eldritch Blast

• Resistance to radiant and force damage

Reality Fracture (Costs 1 Actions). A 20-ft. sphere within 90 ft. becomes warped and twisted making difficult terrain. Enemies inside take 17 (3d10) [Psychic] damage at the start of their turns and must make a DC 18 Int save or be silenced for 1 round.

Hollow Puppeteer (Costs 1 Actions). Choose one poisoned or frightened creature. They must succeed on a DC 18 Charisma saving throw or use their reaction to make a weapon attack against a target of Vaeril’s choice.

False Miracle (Costs 1 Actions). Vaeril feigns a divine ascension, all creatures within 60 ft. must make a DC 18 Con save or be blinded for 1 round. All blinded creatures also take 23 (4d10) [Radiant] (twisted) damage.