He is based on the term "pool shark", which is slang for someone who is a particularly good player of the game billiards, also known as pool.
Statistics
Class: Brainy
Tribes: Mustache Sports Zombie
Trait:Bullseye
Abilities: None
Set - Rarity: Premium - Uncommon
Card description
Not actually a shark.
Update history
Update 1.14.13
Set -Rarity change: Basic - Common → Premium - Uncommon
Strategies
With
Pool Shark has pretty good strength for a 2-brain zombie. What makes this zombie shine even more is his Bullseye trait. However, he has very low health, and since plants go second, it can be rather hard to land a hit with Pool Shark.
A recommended strategy is to use him with Teleport, as your opponent has limited options to prevent it, especially in the early-game. This allows Pool Shark to land 3 free damage on your opponent without any harm for the cost of 3 brains. Beware when playing against Smarty heroes, however, as they have access to Brainana, which can prevent the use of Teleport entirely.
Pool Shark is also a sports zombie, which means he can be useful in a Rustbolt deck based around them, since Team Mascot can boost his stats and Zombie Coach can protect him from incoming damage by shielding him, not to mention Rock Wall and Camel Crossing which boosts Pool Shark's survivability. Immorticia can boost Pool Shark to be even more threatening with tricks such as Vitamin Z. Finally, Template:PvZH Link can play Smoke Bomb or Carried Away to move Pool Shark to an unoccupied lane to do extra damage to his opponent.
Against
While having 3 strength, which is a lot in the early-game, this zombie usually fails to survive for long due to his low amount of health. Using almost any damaging plant or trick will destroy this zombie. However, in the early game, most plants will be destroyed in the process. Also, beware of bonus attack and moving cards, as they can give Pool Shark the upper hand.
Pool Shark on an aquatic lane as a result of Transmogrify
Pool Shark tinted gray due to a glitch
Old
Pool Shark's statistics before update 1.14.13
Pool Shark's statistics
Pool Shark's card
The player having the choice between Pool Shark and Stealthy Imp as a prize for completing a level
Trivia
His description is a reference to the fact that he is called Pool Shark, but it isn't actually a species of shark, jokingly taking the term "pool shark" literally.
Sometimes during his idle animation, he wipes his pool ball on his sleeve.