Asmodeus (Lord of Lust)

Devil's Sight. Magical darkness doesn't impede the archdevil's darkvision.

Abyssal Weapons. The archdevil's weapon attacks are magical and deal an extra 5d8 necrotic damage on a hit (included in the attacks).

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

Sense of Awe effect. Radius: 120 feet. Impossible for people to attack him when they were not attacked first by one of his avatars or Asmodeus himself. 

Innate Spellcasting. The devil's spellcasting ability is Charisma (spell save DC 20). The devil can innately cast the following spells, requiring only verbal components:

Cantrips:
At will: Detect Evil and Good, Charm monster, detect magic, discern location,
dominate monster, longstrider, greater dispelling, Major Image, magic circle,
restoration, Suggestion, symbol of persuasion, teleport, true seeing,
teleportation circle,
3/day each: symbol of hopelessness, fear gaze, Summon Undead, Mass Suggestion,
1/day each: Power Word Stun, Power Word Pain, Symbols, Clone, Antipathy/Sympathy

Multiattack. The archdevil makes two attacks with its weapon.

Ruby Rod of Asmodeus: Melee Weapon Attack: +16 to hit, reach 5 ft., one target. Hit: 11 (1d8 +6) bludgeoning damage, plus 22 (5d8) necrotic damage. If hit, the target is inflicted with wounds which causes an extra 3d10 necrotic damage when hit by another attack. This effect lasts until the magical wounds are healed.
One of the easiest ways to use a Ruby Rod of Asmodeus in combat was to use it as a bludgeoning club. Used like that, a Ruby Rod worked like a +6 unholy greatclub.

It can shoot three types of energy beams:
- a 150-foot (45-meter) beam of electricity, (Lightning Bolt)
- a 150-foot (45-meter) beam of acid,
- a 75-foot (23-meters) cone of intense cold.

The Ruby Rod had three protective abilities:
- One forced people to bow down before the wielder, thereby making it impossible for them to attack the wielder. (Constitution Saving Throw)
- The second one was about creating a wall of force around the wielder.
- As well as the last ability to sprout a 50-foot (15-meter) radius antimagic field that magically repaired the wielder. It would do this by first making away with detrimental enchantment effects, then with mundane detriments like lost body parts that grow back, diseases, and poison-induced effects, and at last with a full recovery of
the wielder's physical health and magical energy. However the wielder can’t move if they want the magic to work. The last ability, the anti magic healing field, could be activated intentionally but would also automatically whenever the wielder fell victim to an enchantment effect. 

Trumpet of Alteration: When blown grants the user the ability to change liquids into other types of liquids.

Avatar Splitting (3/day): To perform it, the Asmodeus powers up and splits into two, then those two avatars split into four and those four into 8. This power has a quite obvious weakness, however. The 8 avatars are created by the user's energy level divided into 8. After using the technique, the avatars are usually 8 times weaker than the user individually. Avatars are dispelled after 24 Earth hours. Can only choose to summon 1, 3 or 7 avatars. If an avatar is killed in a way that destroys its soul/life energy then Asmodeus will be forever weakened. There is no main avatar.