Adult Blue Dracolich
Huge undead, lawful evil
Armor Class
19 (natural armor)
Hit Points
225 (18d12+108)
Speed
40 ft., burrow 30 ft., fly 80 ft.
STR
25 (+7)
DEX
10 (0)
CON
23 (+6)
INT
16 (+3)
WIS
15 (+2)
CHA
19 (+4)
Damage Immunities
lightning, poison
Damage Resistances
necrotic
Condition Immunities
charmed, exhaustion, frightened, paralyzed, poisoned
Senses
blindsight 60 ft., darkvision 120 ft.
Saving Throws
Dex +5, Con +11, Wis +7, Cha +9
Skills
Perception +12, Stealth +5
Languages
Common, Draconic
Challenge
17 (18,000 XP)
Legendary Resistance (3/Day). If the dracolich fails a saving throw, it can choose to succeed instead.
Magic Resistance. The dracolich has advantage on saving throws against spells and other magical effects.
Actions
Multiattack. The dracolich can use its Frightful Presence. It then makes three attacks: one with its bite and two with its claws.
Bite. Melee Weapon Attack: +12 to hit, reach 10 ft., one target. Hit: 18 (2d10 + 7) piercing damage plus 5 (1d10) lightning damage.
Claw. Melee Weapon Attack: +12 to hit, reach 5 ft., one target. Hit: 14 (2d6 + 7) slashing damage.
Tail. Melee Weapon Attack: +12 to hit, reach 15 ft., one target. Hit: 16 (2d8 + 7) bludgeoning damage.
Frightful Presence. Each creature of the dracolich’s choice that is within 120 feet of the dracolich and aware of it must succeed on a DC 18 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature’s saving throw is successful or the effect ends for it, the creature is immune to the dracolich’s Frightful Presence for the next 24 hours.
Lightning Breath (Recharge 5-6). The dracolich exhales lightning in a 90-foot line that is 5 feet wide. Each creature in that line must make a DC 20 Dexterity saving throw, taking 66 (12d10) lightning damage on a failed save, or half as much damage on a successful one.
Legendary Actions
The adult blue dracolich 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. The adult blue dracolich regains spent legendary actions at the start of its turn.
Detect. The dracolich makes a Wisdom (Perception) check.
Tail Attack. The dracolich makes a tail attack.
Wing Attack (Costs 2 Actions). The dracolich beats its tattered wings. Each creature within 10 ft. of the dracolich must succeed on a DC 21 Dexterity saving throw or take 14 (2d6 + 7) bludgeoning damage and be knocked prone. After beating its wings this way, the dracolich can fly up to half its flying speed.