Tips and StrategiesEdit
Hammer Shark is a useful addition to any water-based deck since most water-element cards help in playing cards hidden faster. Hammer Shark's effect makes it stronger when it's supported by other monsters, and its Reward either forces the opponent to sacrifice two monsters or two hidden cards. Since water-element cards typically require the spotting of hidden cards, the second effect of the Reward makes it harder to play certain water-element cards. However, considering there are ways to play cards hidden easily, this isn't much of a drawback. If multiple Hammer Sharks are played after attacking the opponent's hidden cards, there's the potential to truly cripple the opponent by destroying the portal or even reducing the score pile.