From Dungeons and Dragons Wiki
|This material from the 5th edition SRD is published under the OGL|
|Medium beast (shark), unaligned|
|Armor Class: 12 (natural armor)|
|Hit Points: 22 (4d8+4)|
|Speed: 0 ft., swim 40 ft.|
|Skills: Perception +2|
|Senses: blindsight 30 ft., passive Perception 12|
|Challenge: 1/2 (100 xp)|
| 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.