Reef Shark

Medium Beast, Unaligned

AC: 12

Initiative: +1 (11)

HP: 22 (4d8 + 4)

Speed: swim 40 ft.

STR
14 (+2)
DEX
13 (+1)
CON
13 (+1)
INT
1 (-5)
WIS
10 (+0)
CHA
4 (-3)

Skills: Perception +2

Senses: blindsight 30 ft., Passive Perception 12

CR: 1/2 (XP 100; PB +2)

Habitat: Underwater

Pack Tactics.

The shark has advantage on an attack roll against a creature if at least one of the shark's allies is within 5 feet of the creature and the ally isn't incapacitated.

Water Breathing.

The shark can breathe only underwater.

Actions

Bite.

Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 6 (1d8 + 2) piercing damage.

Find this creature in the encounter builder

Reef Shark

Source: Monster Manual (2014), p. 336 - Licenses and attribution