Penguin " Penguin " ( Japanese : ペンギン " Pengin " ) is an archetype comprised of WATER monsters used by Crump and Rio Kastle in the anime . Most of the " Penguin " monsters have unremarkable ATK and DEF , instead focusing on bouncing effects to disrupt the opponent ' s field , and Special Summoning " Penguin " monsters from the Main Deck and Graveyard . Some of the Effect Monsters are quite splashable , such as " Penguin Soldier " and " Nightmare Penguin " . Main cards . " Penguin Soldier " : Can return up to 2 monsters on the field to the hand , including itself if it wasn ' t destroyed by battle when flip ped ( such as when Flip Summon ing itself ) . Especially effective against Synchro , Fusion and Xyz Monsters , since they go back to the Extra Deck , which means the opponent loses field advantage without gaining hand advantage . Since the cards are returned to the hand , this is useful to remove monsters when effects make destroying them difficult , such as " Legendary Six Samurai - Shi En " and " Stardust Dragon " . " Nightmare Penguin " : Much like " Penguin Soldier " , this card can bounce many of your opponent ' s stronger monsters . This card can only target 1 card , but it has a basic 1800 DEF , and might withstand an attack which " Penguin Soldier " may not . It is also Level 4 , which makes it a perfect target for " The Great Emperor Penguin " . " Flying Penguin " : A Normal Monster with low ATK and DEF . It can be used with cards like " The Great Emperor Penguin " or " Rescue Rabbit " in order to Xyz Summon Rank 4 Xyz Monsters . " Bolt Penguin " : Much like " Flying Penguin " , this card is a Normal Monster with low ATK and DEF , so can be used with " The Great Emperor Penguin " or " Rescue Rabbit " to Xyz Summon Rank 3 Xyz Monsters . " The Great Emperor Penguin " : Can be Tributed to Special Summon up to 2 other " Penguin " monsters from your Deck . With its effect , many power - plays are enabled , and therefore it is currently considered the " Penguin " Deck ' s strongest card . Its effect can be combined with " Lemuria , the Forgotten City " to raise the levels of the Summoned monsters to Xyz Summon Xyz Monsters with higher ranks . " Puny Penguin " : " Penguins " . It ' s mainly useful in bringing back the likes of " Penguin Soldier " , " Nightmare Penguin " , or even the " Great Emperor " himself to reuse their effects . " Nopenguin " : Useful for Rank 3 Xyz Summons , because it Special Summons itself from the Graveyard whenever the effect of a " Penguin " monster is activated , but only once per turn . While it can only be Summoned with its effect once per turn , Special Summoning it each turn is still useful each turn , as long as you have " Penguin " effects to activate . In addition , it banish es monsters that are return ed to the hand by " Penguin Soldier " and " Nightmare Penguin " . " Guard Penguin " : It can Special Summon itself when you take effect damage , making it useful for Rank 4 Xyz Summons . Playing style . " Penguins " focus on bouncing cards back to its owner ' s hand with cards like " Penguin Soldier " and " Nightmare Penguin " . Cards like " Neo - Spacian Grand Mole " can be used in this Deck to keep with the bouncing theme . You can also use " Nopenguin " or " Degenerate Circuit " to banish bounced cards instead of returning them to the hand . " Spiritual Water Art - Aoi " can dispose of monsters that you returned to the opponent ' s hand , so using it after using " Penguin Soldier " or " Nightmare Penguin " is a great combo to get rid of strong monsters . By using " Book of Moon " , you can re - use these effects to return cards to the opponent ' s hand again . " Monarch s " can be used to fill out the Deck , since you often have an extra " Penguin " available for Tribute Summons . " Rescue Rabbit " can be included to bring out either " Bolt Penguin " or " Flying Penguin " to Xyz Summon either Rank 3 or 4 Monster , which can also be brought out by " The Great Emperor Penguin " .