Lich King (5e Creature)
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Large undead, chaotic evil
Saving Throws Str +19, Wis +21
Incorporeal Movement. The lich king can move through other creatures and objects as if they were difficult terrain. It takes 2 (1d4) force damage if it ends its turn inside an object, any creature the lich wraith moves through in this way must make a DC 30 Wisdom saving throw or take 56 (16d6) necrotic damage on a failed save, or half as much damage on a successful one.
Darken the Sun. The sun cannot shine within 1 mile of the lich king, nor can any spell create light.
Legendary Resistance (1/round). If the lich king fails a saving throw, it can choose to succeed instead.
Limited Spell Immunity. The lich king cannot be affected or detected by spells of 8th level or lower.
Negative Energy Aura. When a living creature within 1 mile of the lich king would regain hit points, it regains half as many instead.
Omniproficient. The lich king has proficiency with all skills, languages, and weapons.
Rejuvenation. If it has a phylactery, a destroyed lich king gains a new body in 1d10 days, regaining all its hit points and becoming active again. The new body appears within 5 feet of the phylactery.
Spellcasting. The lich king is a 30th-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 32, +19 to hit with spell attacks). The lich king can cast any 5th-level or lower wizard spell at will, without expending a spell slot or any components. The lich king also has the following wizard spells prepared:
6th level (4 slots): disintegrate, globe of invulnerability
Turn Immunity. The lich king has immunity against any effect that turns undead.
Multiattack. The lich king uses its howl from beyond if available, then it makes three attacks or casts two spells.
Paralyzing Touch. Melee Spell Attack: +19 to hit, reach 10 ft., one creature. Hit: 94 (24d6+ 10) necrotic damage. The target must succeed on a DC 30 Constitution saving throw or be paralyzed for 1 minute. The target can repeat the saving throw at the beginning of each of its turns, ending the effect on itself on a success.
Life Drain. Melee Spell Attack: +19 to hit, reach 10 ft., one creature. Hit: 94 (24d6 + 10) necrotic damage. The target must succeed on a DC 30 Constitution saving throw or its hit point maximum is reduced by an amount equal to the damage taken. This reduction can only be undone by a wish spell. The target dies if this effect reduces its hit point maximum to 0. A humanoid who dies this way immediately rises again as a dread wraith under the king's control.
Howl From Beyond (Recharge 5-6). The lich king emits a piercing shriek. This shriek has no effect on undead or constructs. All other creatures within 120 feet of it that can hear it must make a DC 30 Constitution saving throw. On a failure, a creature drops to 0 hit points. On a success, a creature takes 180 (40d8) psychic damage.
Create Dread Wraith. The lich king targets a humanoid within 120 feet of it that has been dead for no longer than 1 minute and died violently. The target's spirit rises as a dread wraith in the space of its corpse or in the nearest unoccupied space. The dread wraith is under the lich king's control. The lich king can have no more than twenty dread wraiths under its control at one time.
The lich king can take 5 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. The lich king regains spent legendary actions at the start of its turn.
Spell. The lich king casts a spell of 5th level or lower.
Sometimes wizards don't want to be regular liches...