Belphegor (Simulacrum)

Devils: Archdevils

At the top of the hierarchy of the Nine Hells stand the archdevils, a vicious and backbiting group made up of the Hells’ elite devils. They include the various lords, the nobles who owe them fealty, and some exiles and outcasts who have fallen out of favor. Favor in the Nine Hells shifts like the wind, and the fortunes of the great and mighty rise and fall at the whims of their betters. Many dread names are included in the rolls of the archdevils; the few described here are among those that adventurers are most likely to encounter.

Wish Fulfillment. All devils seek control over mortal souls, so they offer enticements to tempt mortals into making unwise bargains. Archdevils, possessing the true power of the Nine Hells, can fulfill nearly any desire (within the limits of a Wish spell) requested by the mortals they bind to their infernal contracts. Archdevils always fulfill the letter of the wish, rewarding desperate mortals with a twisted interpretation of their desires. In exchange for this gift, the devil expects and receives total power over a soul and usually claims it upon the mortal’s death. An archdevil can’t fulfill its own wish.

Greater Magical Knowledge. Archdevils have greater magical power and knowledge than any other devil in Hell. Because of that, Archdevils have a greater array of spells that they can cast, those being the following:

Cantrips: Archdevils know all cantrips and can cast each of them at their maximum level (level 17). If an Archdevil has an feature that grants them spells and they gain a cantrip, that cantrip will deal extra damage equal to their spellcasting modifier. Additionally, whenever uses their Spellcasting to cast the True Strike cantrip, they can change its damage from Radiant to either Psychic or Thunder.

At will: Detect Evil and Good, Detect Magic, Detect Poison and Disease, Detect Thoughts, Protection from Energy, Protection from Poison, Protection from Evil and Good, Locate Animals or Plants, Locate Creature, Locate Object, Fireball, Lightning Bolt, Sending, Cone of Cold, Mote of Hell, Hell’s Lash

3/day each: Creation (9th level, as an action and lasting forever, regardless of the material created), Harm, Resurrection (as an action), Chain Lightning, Bestow Curse (9th level, 60 foot range), Heal, Hold Monster, Disintegrate, Summon Fiend (9th level, Devil form only), Plane Shift, Counterspell, Dispel Magic (9th level), Dominate Monster, Simulacrum (as an action)

1/day each: Prismatic Wall, Wall of Fire (9th level), Wall of Force, Wall of Ice (9th level), Wall of Light, Wall of Stone, Wall of Thorns (9th level), Wall of Water, Wall of Sand, Wall of Death, Wind Wall, Power Word Fortify, Power Word Pain, Power Word Heal, Power Word Stun, Power Word Kill, Forcecage, Word of Recall (towards their lair only), Scatter, Finger of Death, Sequester, Geas (9th level), Project Image, Imprisonment

Quickness of Action.  Archdevils have mastered multiple ways of better adapting to certain situations in order to interact with mortals and found unique ways to escape danger. granting them the following Bonus Actions:

• Swift Teleport. The Archdevil magically teleports, along with any equipment they are wearing and carrying, up to 30 feet to an unoccupied space they can see.
• Change Shape. The Archdevil magically transforms into any creature that is Huge or smaller, while retaining their game statistics (other than their size). This transformation ends if the Archdevil is reduced to 0 hit points or uses a bonus action to end it.

Legendary Mastery. Archdevils are considered legendary creatures with increadible power, capable of easily bringing down entire kingdoms by themselves. All Archdevils have access to the following Legendary Actions in addition to the ones they already possess:

• Cast a Spell (Costs 2 Actions): The Archdevil uses Spellcasting.
• Teleport: The Archdevil magically teleports, along with any equipment they are wearing and carrying, up to 120 feet to an unoccupied space they can see.
• Attack: The Archdevil makes one weapon attack.
• Frightening Glare (Costs 3 Actions): The Archdevil targets one creature it can see within 60 feet of them. If the target can see the Archdevil, the target must succeed on a DC 23 Wisdom saving throw or become frightened of the Archdevil until the end of its next turn.
• Summon Underling (Costs 3 Actions): The Archdevil magically summons 1d4 devils of CR 12 or lower. The devils appear in an unoccupied space within 60 feet of the Archdevil and acts as the Archdevil´s allies. The devils remain until the Archdevil dies or until it dismisses them as an action.

Belphegor

The Prince of Sloth and Lord of the Haligtree, Belphegor is the youngest son of the archdevil Lilith and twin brother of Beelzebub, the King of Glutonny. Known as the Prodigy of Maladomini, Belphegor is the least infernal looking devil. He uses his looks and arcane mastery to make others bend to his whim while living peacefully secluded in his Haligtree.

Having spent his entire life in Hell focusing on increasing his magical knowledge, Belphegor quickly became Mephistopheles favorite student, being one of the few who is able to cast insanely high level spells multiple times a day. Being one of the seven chosen Archdevils to inherit Asmodeus´ Runes of Sin, Belphegor became tasked with holding the Rune of Sloth, granting him the title of Prince of Sloth because of that.

A peaceful devil with a great mind, Belphegor focuses on creating infernal machinery and constructs to aid his fellow infernal associates, with him being the one who create the infernal War Machines that the Archduchess Zariel uses in Avernus. Because of his peaceful manners, Belphegor was able to strike powerful deals with even Deities of Good and Neutrality, gaining domain over the souls of their followers who don´t make the cut to go towards the upper planes.

His domain, High Garden, also known as the Haligtree, is one of the many roots of  Yggdrasil, though this one sprouted in Hell, precisely in Maladomini. After the reckoning, the roots were burned and hindered inactive, but after Belphegor´s birth and attempt on creating his personal domain, the roots were revived. Now Belphegor lives as the guardian of his Haligtree, preventing outsiders of accessing Hell utilizing Yggdrasil´s roots.