Brother Adramalech

Brother Adramalech
CR 21Medium Fiend (devil), Lawful Evil
Reveal Stat Block
Armor Class
19 (natural armor)Hit Points
212 (25d8 + 100)Speed
30 ft.str
14
+2
dex
16
+3
con
18
+4
int
25
+7
wis
25
+7
cha
25
+7
Traits
Devil's Sight.Magical darkness doesn't impede Adramalech's darkvision.
Magic Resistance.Adramalech has advantage on saving throws against spells and other magical effects.
Unbreakable Bond.If Adramalech is reduced to 0 hit points while Brother Morax still lives, Adramalech regenerates 50 hit points at the start of his next turn. This regeneration is interrupted if Brother Morax is reduced to 0 hit points before the start of Adramalech's turn.
Actions
Multiattack.Adramalech makes four attacks using Mental
Barrage.He can replace one of the attacks with Brain Freeze or Cone of Madness (if available).
Mental Barrage.mw,rw 14 to hit, reach 5 ft. or range 60/120 ft., one target. ({@damage 4d8 + 7) psychic damage.
Brain Freeze.Adramalech attempts to overload the brain of a creature he can see within 60 feet of him. The target must make a 22 Intelligence saving throw, taking 22 (4d10) psychic damage on a failed save, or half as much on a successful one. Creatures that fail the saving throw have the stunned condition for up to 1 minute. A stunned creature may repeat the saving throw at the end of each of their turns, ending the effect on a success.
Cone of Madness 4.Adramalech unleashes visions in a 30-foot cone in front of him. All creatures in the cone must make a 22 Wisdom saving throw, taking 17 (5d6) psychic damage on a failed save, or half as much on a successful one. For up to 1 minute, creatures that failed the save can't take reactions and each turn must use their action to make a melee attack against the nearest creature. Creatures may repeat the saving throw at the end of each of their turns, ending the effect on a success.
Legendary Actions.The creature can take 3 legendary actions...
Barrage.Adramalech makes a Mental Barrage attack.
Mental Blocker.Adramalech fortifies the mind of a creature he can see within 60 feet of him, or himself. The target benefits as if the Greater Restoration spell has been cast on them and is granted resistance to psychic damage until the end of Adramalech's next turn.