Medium undead, lawful NX chaotic evil
- Armor Class
- 17 (natural armor)
- Hit Points
- 135 (18d8 + 54)
- Speed
- fly 60 ft. (hover), 30 ft., canHover true ft.
- Challenge
- 21 (33,000 XP)
- Saving Throws
- Con +10, Int +12, Wis +9
- Skills
- Arcana +19, History +12, Insight +9, Perception +9
- Damage Resistances
- cold; lightning; necrotic
- Damage Immunities
- poison; bludgeoning, piercing, slashing from nonmagical attacks
- Condition Immunities
- charmed; exhaustion; frightened; paralyzed; poisoned
- Senses
- truesight 120 ft., passive Perception 19
- Languages
- Common plus up to five other languages
Traits
If Arcturia fails a saving throw, it can choose to succeed instead.
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.
Arcturia has advantage on saving throws against any effect that turns undead.
Actions
Melee Spell Attack: +12 to hit, reach 5 ft., one creature. Hit: 10 (3d6) cold damage. The target must succeed on a DC 18 Constitution saving throw or be paralyzed for 1 minute. The target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.
Legendary Actions
Arcturia casts a cantrip.
Arcturia uses its Paralyzing Touch.
Arcturia fixes its gaze on one creature it can see within 10 feet of it. The target must succeed on a DC 18 Wisdom saving throw against this magic or become frightened for 1 minute. 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 Arcturia's gaze for the next 24 hours.
Each non-undead creature within 20 feet of Arcturia must make a DC 18 Constitution saving throw against this magic, taking 21 (6d6) necrotic damage on a failed save, or half as much damage on a successful one.
Spellcasting
Arcturia is an 18th-level spellcaster. Her spellcasting ability is Intelligence (spell save DC 20, +12 to hit with spell attacks). Arcturia can cast alter self at will and has the following wizard spells prepared: