Blight Lich Adept

Medium undead, neutral evil

Armor Class 16 (natural armor)
Hit Points 135 (18d8 + 54)
Speed 30 ft.

STR	DEX	CON	INT	WIS	CHA
10 (+0)	14 (+2)	16 (+3)	17 (+3)	19 (+4)	18 (+4)

Saving Throws Con +8, Int +8, Wis +9
Skills Nature +8, Perception +9, Survival +9
Damage Resistances cold, lightning, necrotic; bludgeoning, piercing, and slashing from nonmagical weapons
Damage Immunities poison
Condition Immunities charmed, exhaustion, frightened, paralyzed, poisoned
Senses truesight 120 ft., passive Perception 19
Languages Common, Druidic, Sylvan, plus up to three other languages
Challenge 16 (15,000 XP)

Special Traits

• Circle of Rot. Whenever an undead creature is destroyed within 60 feet of the adept, the adept regains a number of hit points equal to twice the destroyed creature’s CR.
• Legendary Resistance (3/Day). If the adept fails a saving throw, it can choose to succeed instead.
• Rejuvenation. If it has a phylactery, the destroyed adept gains a new body in 1d10 days, regaining half its hit points and becoming active again. The new body appears within 5 feet of the phylactery.
• Spellcasting. The adept is a 13th level spellcaster. Its spellcasting ability is Wisdom (spell save DC 17, +9 to hit with spell attacks). The adept has the following druid spells prepared:
• Cantrips (at will): guidance, poison spray, thorn whip
• 1st level (4 slots): detect magic, fog cloud, thunderwave
• 2nd level (3 slots): gust of wind, hold person, moonbeam
• 3rd level (3 slots): dispel magic, protection from energy, sleet storm
• 4th level (3 slots): blight, polymorph
• 5th level (2 slots): antilife shell, contagion
• 6th level (1 slot): move earth, wind walk
• 7th level (1 slot): plane shift, reverse gravity
• Turn Resistance. The adept has advantage on saving throws against any effect that turns undead.

Actions

• Decomposing Touch. Melee Spell Attack: +9 to hit, reach 5 ft., one creature. Hit: 17 (5d6) necrotic damage, and the target must succeed on a DC 17 Constitution saving throw, or become poisoned for 1 minute. While poisoned, a creature must succeed on a DC 17 Constitution saving throw at the start of each of its turns, or take 17 (5d6) necrotic damage. Once a creature succeeds on the saving throw, the effect ends for it.
• Undead Beast Shape (2/Day). The adept magically polymorphs into a beast with a challenge rating of 8 or less, and can remain in this form for up to 9 hours. While in this form, the lich resembles a decomposing, undead version of that beast. The adept can choose whether its equipment falls to the ground, melds with its new form, or is worn by the new form. The adept reverts to its true form if it dies or falls unconscious. The adept can revert to its true form using a bonus action on its turn. While in a new form, the adept retains its game statistics and ability to speak, but its AC, movement modes, Strength, and Dexterity are replaced by those of the new form. Additionally, it gains the special senses, proficiencies, traits, actions, and reactions (except class features, legendary actions, and lair actions) of its new form. The adept can’t cast spells with somatic components in its new form. The new form’s attacks count as magical for the purpose of overcoming resistances and immunity to nonmagical attacks. Additionally, when the adept hits with a weapon attack in its new form, the target takes an additional 17 (5d6) necrotic damage and must succeed on a DC 17 Constitution saving throw, or become poisoned for 1 minute. While poisoned, a creature must succeed on a DC 17 Constitution saving throw at the start of each of its turns, or take 17 (5d6) necrotic damage. Once a creature succeeds on the saving throw, the effect ends for it.