Ankhtepot

Legendary Resistance (3/Day). If Ankhtepot fails a saving throw, he can choose to succeed instead.

Rejuvenation. Ankhtepot gains a new body in 24 hours if his heart is intact, regaining all his hit points and becoming active again. The new body appears within 5 feet of the mummy lord's heart, rising from the sands.

Turn Resistance. Ankhtepot has advantage on saving throws against any effect that turns undead.

Enlarge (Recharges after a Short or Long Rest). For 1 minute, Ankhtepot magically increases in size, along with anything he is wearing or carrying. While enlarged, Ankhtepot is Large, doubles its damage dice on Strength-based weapon attacks (included in the attacks), and makes Strength checks and Strength saving throws with advantage. If Ankhtepot lacks the room to become Large, it attains the maximum size possible in the space available.

Multiattack. Ankhtepot can use its Sickening Radiance and makes one attack with its rotting fist.

Rotting Fist. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 14 (3d6 + 4) bludgeoning damage plus 21 (6d6) necrotic damage. If the target is a creature, it must succeed on a DC 16 Constitution saving throw or be cursed with mummy rot. The cursed target can't regain hit points, and its hit point maximum decreases by 10 (3d6) for every 24 hours that elapse. If the curse reduces the target's hit point maximum to 0, the target dies, and its body turns to dust. The curse lasts until removed by the remove curse spell or other magic.

Sickening Radiance. Ankhtepot targets one creature he can see within 60 feet of himself. If the target can see Ankhtepot, it must succeed on a DC 16 Wisdom saving throw. On a failed save, the target takes 13 (2d8 + 4) radiant damage and is blinded until the start of Ankhtepot’s next turn. On a successful save, the target takes half as much damage and isn’t blinded.

Spellcasting. Ankhtepot casts one of the following spells, using Wisdom as the spellcasting ability (spell save DC 16):

At will: command, shield of faith, speak with dead, thaumaturgy

2/day each: animate dead, dispel magic, hold person, silence

1/day each: disintegrate, insect plague, flame strike

Summon Spirits. Ankhtepot calls forth spirits of the dead, surrounding him for 1 minute. These spirits bolster his attacks, dealing an additional 2d8 radiant damage when he hits a creature within 10 feet of him. Any creature dealt this damage has their speed reduced by 10 feet until the start of his next turn.

Spiritual Weapon. Ankhtepot summons a floating, spectral spear within 60 feet and lasts 1 minute. This spear can make a melee spell attack against a creature within 5 feet of the weapon. On a hit, the target takes force damage equal to 1d8 + 4. As a bonus action on Ankhtepot's turn, he can move the weapon up to 20 feet and repeat the attack against a creature within 5 feet of it.

Dread Counterspell. Ankhtepot utters a dread word to interrupt a creature he can see that is casting a spell. If the spell is 3rd level or lower, it fails and has no effect. If the spell is 4th level or higher, the lich makes an Intelligence check (DC 10 + the spell’s level). On a success, the spell fails and has no effect. Whatever the spell’s level, the caster takes 10 (3d6) psychic damage if the spell fails.

Ankhtepot 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. Ankhtepot regains spent legendary actions at the start of his turn.

Attack. Ankhtepot makes one attack with his rotting fist or uses its Sickening Radiance.

Blinding Dust. Blinding dust and sand swirls magically around Ankhtepot. Each creature within 5 feet of Ankhtepot must succeed on a DC 16 Constitution saving throw or be blinded until the end of the creature's next turn.

Whirlwind of Sand (Costs 2 Actions). Ankhtepot magically transforms into a whirlwind of sand, moves up to 60 feet, and reverts to his normal form. While in whirlwind form, Ankhtepot is immune to all damage, and it can't be grappled, petrified, knocked prone, restrained, or stunned. Equipment worn or carried by him remain in his possession.