echolocation The bat can't use its blindsight while deafened.
Keen Hearing The bat has advantage on Wisdom (Perception) checks that rely on hearing.
Bite. Melee Weapon Attack: +0 to hit, reach 5 ft., one creature.
Hit: 1 piercing damage.
Flyby. The owl doesn't provoke opportunity attacks when it flies out of an enemy's reach.
Keen Hearing and Sight. The owl has advantage on Wisdom (Perception) checks that rely on hearing or sight.
Talons. Melee Weapon Attack: +3 to hit, reach 5 ft., one target.
Hit: 1 slashing damage.
Keen Smell. The rat has advantage on Wisdom (Perception) checks that rely on smell.
Bite. Melee Weapon Attack: +0 to hit, reach 5 ft., one target.
Hit: 1 piercing damage.
A flying snake is a brightly colored, winged serpent found in remote jungles. Tribespeople and cultists sometimes domesticate flying snakes to serve as messengers that deliver scrolls wrapped in their coils.
Flyby. The snake doesn't provoke apportunity attacks when it flies out of an enemy's reach.
Bite. Melee Weapon Attack: +6 to hit, reach 5 ft., one target.
Hit: 1 piercing damage plus 7 (3d4) poison damage.
Giant owls often befriend fey and other sylvan creatures and are guardians of their woodland realms.
Flyby. The owl doesn't provoke opportunity attacks when it flies out of an enemy's reach.
Keen Hearing and Sight. The owl has advantage on Wisdom (Perception) checks that rely on hearing or sight.
Talons. Melee Weapon Attack: +3 to hit, reach 5 ft., one target.
Hit: 8 (2d6+1) slashing damage.
A giant shark is 30 feet long and normally found in deep oceans. Utterly fearless, it preys on anything that crosses its path, including whales and ships.
Blood Frenzy. The shark has advantage on melee attack rolls against any creature that doesn't have all its hit points.
Water Breathing. The shark can breathe only underwater.
Bite. Melee Weapon Attack: +9 to hit, reach 5 ft., one target.
Hit: 22 (3d10+6) piercing damage.
A mammoth is an elephantine creature with thick fur and long tusks. Stockier and fiercer than normal elephants, mammoths inhabit a wide range of climes, from subartic to subtropical.
Trampling Charge. If the mammoth moves at least 20 feet straight toward a creature and then hits it with a gore attack on the same turn, that target must succeed on a DC 18 Strength saving throw or be knocked prone. If the target is prone, the mammoth can make one stomp attack against it as a bonus action.
Gore. Melee Weapon Attack: +10 to hit, reach 10 ft., one target.
Hit: 25 (4d8+7) piercing damage.
Stomp. Melee Weapon Attack: +10 to hit, reach 5 ft., one prone creature.
Hit: 29 (4d10+7) bludgeoning damage.
Multiattack. The ape makes two fist attacks.
Fist. Melee Weapon Attack: +9 to hit, reach 10 ft., one target.
Hit: 22 (3d10 +6) bludgeoning damage.
Rock. Ranged Weapon Attack: +9 to hit, range 50/100 ft., one target.
Hit: 30 (7d6+6) bludgeoning damage.
Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target.
Hit: 2 (1d4) bludgeoning damage.
Mastiffs are impressive hounds prized by humanoids for their loyalty and keen senses. Mastiffs can be trained as guard dogs, hunting dogs, and war dogs. Halfings and other Small humanoids ride them as mounts.
Keen Hearing and Smell. The mastiff has advantage on Wisdom (Perception) checks that rely on hearing or smell.
Bite. Melee Weapon Attack: +3 to hit, reach 5 ft., one target.
Hit: 4 (1d6+1) piercing damage. If the target is a creature, it must succeed on a DC 11 Strength saving throw or be knocked prone.
Trampling Charge. If the horse moves at least 20 feet straight toward a creature and then hits it with a hooves attack on the same turn, that target must succeed on a DC 14 Strength saving throw or be knocked prone. If the target is prone, the horse can make another attack with its hooves against it as a bonus action.
Hooves. Melee Weapon Attack: +6 to hit, reach 5 ft., one target.
Hit: 11 (2d6+4) bludgeoning damage.
Multiattack. The tyrannosaurus makes two attacks: one with its bite and one with its tail. It can't make both attacks against the same target.
Bite. Melee Weapon Attack: +10 to hit, reach 10 ft., one target.
Hit: 33 (4d12+7) piercing damage. If the target is a Medium or smaller creature, it is grappled (escape DC17). Until this grapple ends, the target is restrained, and the tyrannosaurus can't bite another target.
Tail. Melee Weapon Attack: +10 to hit, reach 10 ft., one target.
Hit: 20 (3d8+7) bludgeoning damage.