Goristro

Huge Fiend (Demon), Chaotic Evil

AC: 19

Initiative: +6 (16)

HP: 310 (23d12 + 161)

Speed: 50 ft.

STR
25 (+7)
DEX
11 (+0)
CON
25 (+7)
INT
6 (-2)
WIS
13 (+1)
CHA
14 (+2)

Saving Throws: Str +13, Dex +6, Con +13, Wis +7

Skills: Perception +7, Survival +7

Resistances: cold; fire; lightning

Immunities: poison

Condition Immunities: poisoned

Senses: Darkvision 120 ft., Passive Perception 17

Languages: Abyssal

CR: 17 (XP 18,000; PB +6)

Habitat: Planar, Abyss

Treasure: Armaments

Demonic Restoration.

If the goristro dies outside the Abyss, its body dissolves into ichor, and it gains a new body instantly, reviving with all its Hit Points somewhere in the Abyss.

Magic Resistance.

The goristro has Advantage on saving throws against spells and other magical effects.

Siege Monster.

The goristro deals double damage to objects and structures.

Actions

Multiattack.

The goristro makes one Brutal Gore attack and two Slam attacks.

Brutal Gore.

Melee Attack Roll: +13, reach 10 ft. Hit: 40 (6d10 + 7) Piercing damage. If the target is a Huge or smaller creature, it is pushed up to 20 feet straight away from the goristro and has the Prone condition.

Slam.

Melee Attack Roll: +13, reach 10 ft. Hit: 29 (4d10 + 7) Bludgeoning damage.

Bonus Actions

Charge.

The goristro moves up to half its Speed straight toward an enemy it can see.

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Goristro

Source: Monster Manual (2025), p. 150 - Licenses and attribution