Immutable Form. The golem can’t shape-shift.
Magic Resistance. The golem has Advantage on saving throws against spells and other magical effects.
Multiattack. The Tallow Golem makes two Slam attacks.
Slam. Melee Weapon Attack: +9 to hit, reach 5 ft., one creature. Hit: 7 (1d8 + 2) bludgeoning damage.
Grab. The tallow golem must hit an opponent up to its own size or smaller with a slam attack. It can then attempt to start a grapple as a free action without provoking an attack of opportunity. If it wins the grapple check, the tallow golem establishes a hold.
Absorption. A tallow golem can break down and absorb fluids from a living victim by making a successful grapple check. If it pins the foe, it deals 1d4 points of Constitution damage each round the pin is maintained.
Diseased Pustules. When the festrog takes damage from a piercing or slashing weapon, its boils rupture, squirting the attacker with pus-like fluids. The noxious secretions carry a potent contact disease that causes those infected to break out into painful necrotic boils (DC 11, incubation 1 day, 1d4 Con).
Feed. Every time a festrog makes a successful bite attack it feeds on its opponent’s flesh and gains 5 temporary hit points.
Four-Footed Run. A festrog can run on all fours at speed 50 if it doesn’t hold or carry anything in its hands.
Multiattack. The Tallow Golem makes one Bite and two Claw attacks.
Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 6 (1d6 + 3) piercing damage.
Claw. Melee Weapon Attack: -1 to hit, reach 5 ft., one creature. Hit: 3 (1d4 + 1) slashing damage.