Armor Class 15 (natural armor)
Hit Points 52 (7d10 + 14)
Speed 30 ft., swim 30 ft.
Skills Athletics +5, Perception +3, Survival +5
Senses passive Perception 13
Languages Draconic
Challenge 3
Blood Frenzy. The render has advantage on melee attack rolls against any creature that doesn't have all its hit points.
Hold Breath. The render can hold its breath for 15 minutes.
Multiattack. The render makes two attacks: one with its claws and one with its bite.
Claws. Melee Weapon Attack: +5 to hit, reach 10 ft., one target. Hit: 12 (2d8 + 3) slashing damage.
Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 8 (1d10 + 3) piercing damage.
Rend the Field (Recharge 5–6). The render makes a claw attack against each creature of its choice within 10 feet of it. A creature hit by this attack must succeed on a DC 13 Strength saving throw or be knocked prone.
GoS, p. 241