Barbed Devil Guardian

Barbed Hide. At the start of each of its turns, the barbed devil guardian deals 5 (1d10) piercing damage to any creature grappling it.

Devil's Sight. Magical darkness doesn't impede the guardian's darkvision.

Magic Resistance. Reinforced by runes, the metal composing the barbed devil guardian grants it advantage on saving throws against spells and other magical effects.

Crushing Might. The Claw and Tail attacks of the barbed devil guardian are empowered through its magical mechanism. They deal 6 (2d6) extra force damage. They have an additional effect described in the attack.

Multiattack. The barbed devil guardian makes three melee attacks: one with its tail and two with its claws. Alternatively, it can use Hurl Flame twice.

Claw. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 3) slashing damage. The target must succeed on a DC 14 Strength saving throw of be dazed by the sharp and painful impact of the attack. Their speed is halved until the end of their next turn and they have disadvantage on their next attack.

Tail. Melee Weapon Attack: +6 to hit, reach 10 ft., one target. Hit: 10 (2d6 + 3) piercing damage. The target is pinned down by the attack. They are considered restrained until they escape or the guardian uses its tail to attack. To escape they must succeed on a DC 14 Strength ability check.

Hurl Flame. Ranged Spell Attack: +5 to hit, range 150 ft., one target. Hit: 13 (4d6) fire damage. If the target is a flammable object that isn't being worn or carried, it also catches fire.