Sources
CR
Type
Size
Alignment
Movement

Reduced-Threat Glabrezu

Large Fiend (demon), Chaotic Evil

Armor Class 17 (natural armor)
Hit Points 157 (15d10 + 75)
Speed 40 ft.
STR
20
+5
DEX
15
+2
CON
21
+5
INT
19
+4
WIS
17
+3
CHA
16
+3
Saving Throws STR +9, CON +9, WIS +7, CHA +7
Damage Resistances cold, fire, lightning; bludgeoning, piercing, slashing, from nonmagical attacks
Damage Immunities poison
Condition Immunities Poisoned
Senses truesight 120 ft., passive Perception 13
Languages Abyssal, telepathy 120 ft.
Challenge 9 (5,000 XP)

Traits

Reduced Threat. A reduced-threat monster takes a −2 penalty on attack rolls (included in the stat block), ability checks (included in the stat block for skill proficiencies), saving throws (included in the stat block for saving throw proficiencies), and saving throw DCs (included in the stat block).

Magic Resistance. The glabrezu has advantage on saving throws against spells and other magical effects.

Spellcasting

Innate Spellcasting. The glabrezu's spellcasting ability is Intelligence (spell save DC 16). The glabrezu can innately cast the following spells, requiring no material components:

At will: darkness, detect magic, dispel magic

1/day each: confusion, fly, power word stun

Actions

Multiattack. The glabrezu makes four attacks: two with its pincers and two with its fists. Alternatively, it makes two attacks with its pincers and casts one spell.

Pincer. Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit:16 (2d10 + 5) bludgeoning damage. If the target is a Medium or smaller creature, it is grappled (escape DC 15). The glabrezu has two pincers, each of which can grapple only one target.

Fist. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit:7 (2d4 + 2) bludgeoning damage.