Lich

If it has a phylactery, a destroyed Lich 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.

The lich is an 18th-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 20, +12 to hit with spell attacks). The lich has the following wizard spells prepared: Cantrips (at will): mage hand, prestidigitation, ray of frost 1st level (4 slots): detect magic, magic missile, shield, thunderwave 2nd level (3 slots): detect thoughts, invisibility, acid arrow, mirror image 3rd level (3 slots): animate dead, counterspell, dispel magic, fireball 4th level (3 slots): blight, dimension door 5th level (3 slots): cloudkill, scrying 6th level (1 slot): disintegrate, globe of invulnerability 7th level (1 slot): finger of death, plane shift 8th level (1 slot): dominate Lich, power word stun 9th level (1 slot): power word kill

The Lich has advantage on saving throws against any effect that turns undead.

If the Lich fails a saving throw, it can choose to succeed instead.

+7 to hit, range 5 ft. Hit: 10 (3d6) cold damage. The target must succeed on a saving throw or be paralyzed for . The target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

The Lich casts a cantrip.

The Lich uses its Paralyzing Touch.

The Lich fixes its gaze on it can see within of it. The target must succeed on a saving throw against this magic or become frightened for . The frightened target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a target's saving throw is successful or the effect ends for it, the target is immune to the Lich's for the next 24 hours.

Each non-undead creature within feet of the Lich must make a saving throw against this magic, taking damage on a failed save, or half as much damage on a successful one.