WATER WATER ( " Mizu " ) is a very versatile Attribute , and even has a semi - viable Deck based around such monsters , the Water Deck . The Monster Type s typically associated with WATER are Aqua , Fish , and Sea Serpent , though Plant s and Reptile s are not uncommonly WATER monsters . WATER is usually thought of as the opposite to FIRE , though there is no real advantage for either Attribute over each other in the " OCG " / " TCG " . Because of their versatility , Water monsters can be used in a number of strategic ways , possessing many different abilities . Some of the most powerful WATER monsters include : " Gogiga Gagagigo " , " White Night Dragon " , " Superancient Deepsea King Coelacanth " , and " Ocean Dragon Lord - Neo - Daedalus " . The general strategy for all WATER decks is to create a lockdown on the field for the opponent while building up and replenishing the player ' s resources . This makes most WATER Decks very passive , but that can be a good thing because WATER Decks need some set up time to work their combos correctly . But the most popular WATER Deck typically tries to boost the ATK of WATER monsters with " A Legendary Ocean " while simultaneously lowering their Level s with " A Legendary Ocean " to summon them faster , a very effective strategy when played correctly . One example is " Giga Gagagigo " , a Level 5 Normal Reptile with 2450 ATK , which is strong enough to overpower Monarchs . In " Stardust Overdrive " , WATER monsters gained new support , such as draw support from " Moray of Greed " . WATER is also the only Attribute not to contain any " LV " monsters . Archetypes include " Cloudian " ( with the exception of " Cloudian - Eye of the Typhoon " ) , " Frog " , " Ice Barrier " , " Atlantean " , " Mermail " , " Gishki " , " Nekroz " , " Dinomist " , and " Graydle " . They have their own Structure Deck s : " " and " Realm of the Sea Emperor Structure Deck " / " " . WATER Monsters are used by Mako Tsunami in " Yu - Gi - Oh ! " , Admiral in " Yu - Gi - Oh ! GX " , Shark and Rio in " Yu - Gi - Oh ! ZEXAL " . Supporting Cards . Water monsters enjoy great support , especially from Spell and Trap Card s such as " Tornado Wall " , " Big Wave Small Wave " and " Salvage " . They also have four Field Spell Card s specifically targeted towards them , more than any other Attribute : Also , there is another Field Spell , " Wetlands " , but only works on Level 2 ( or lower ) Aqua - type WATER monsters , such as the " Frog " archetype . Monster cards that aid Water Decks are great in number as well : A card seen in almost every Water Deck is " Gravity Bind " or " Bubble Bringer " , which will allow the player ' s Level 4 monsters to attack with " A Legendary Ocean " on the field , locking down the opponent . Another good combo is using " A Legendary Ocean " , " Tornado Wall " , and " Astral Barrier " . Attacks from your opponent become direct attacks because of " Astral Barrier " and " Tornado Wall " will make the direct damage 0 . If you want to save this combo you can play " Imperial Custom " , which will protect all your other continuous traps from being destroyed like your " Astral Barrier " and " Tornado Wall " . Or you can play " Forgotten Temple of the Deep " which is also a Continuous Trap and is treated as " Umi " , so it will be harder to ruin the combo because " Imperial Custom " will protect it as well . " Field Barrier " can also protect " Umi " and keep it on the Field . Playing Style . Utilising Legendary Ocean . Numerous water decks rely on this field spell card to perform powerful effects as discussed below . Strengths . A water deck is very versatile . It can lock your opponent down with the " Amphibious Bugroth MK - 3 " / " Mermaid Knight " , Summon devastating beatsticks such as the " Giga Gagagigo " or " Terrorking Salmon " or control the field with " Levia - Dragon - Daedalus " . Basically , it revolves many methods to win the opponent and all of them can be put into the deck . In most cases , they also have good stalling ability with support such as " Gravity Bind " and " Level Limit - Area B " . They also have good defense cards to such as " Mother Grizzly " , " Penguin Soldier " and " Nightmare Penguin " . Not only do these card protect you from monster attacks , but either ruin your opponent ' s offensive or give you card advantage . Another combo is " Dupe Frog " and " Flip Flop Frog " ; " Dupe Frog " has 2000 DEF , and can only be be selected as an attack target by your opponent , which could create a lock when multiples of " Dupe Frog " are on the field . Moreover , when " Dupe Frog " is destroyed , you can search your deck or graveyard to add another " Frog " monster . When used with " Flip Flop Frog " , you can clear your opponent ' s monster cards . With the advent of new WATER - based support in " Ancient Prophecy " , " A Legendary Ocean " Decks have gained more power . Destroyed field cards can be replenished with " Divine Dragon Aquabizarre " , while various new monsters have been made to take advantage of the level - reducing effect of " A Legendary Ocean " ( such has requiring a level 3 or lower WATER type monster to be present on the field to activate their effects ) . " Aegis of the Ocean Dragon Lord " is one such card , and can turn into an OTK when used with its namesake , " Ocean Dragon Lord - Neo - Daedalus " . In addition " Shark Cruiser " is a Level 5 Monster which , when destroyed by an opponent ' s card effect , search two Level 4 or lower WATER Monsters from your deck . In " Absolute Powerforce " , the card " Codarus " added a much needed boost to this Deck , acting as a mini " Levia - Dragon - Daedalus " which sends cards to the graveyard instead of destroying them , able to bypass the effects of " Stardust Dragon " and " Starlight Road " . Also , " Forgotten Temple of the Deep " acts as a Trap Card " Umi " , giving this deck more options . Weaknesses . One weakness of Water Decks and Water monsters in general , is that they rely on " Umi " or " A Legendary Ocean " to work to their potential . This will also make it much harder to duel an opponent who also uses water monsters since the field power bonus from Umi or A Legendary Ocean applies to their water monsters too . They lack cards that allow them more draw power , while using much of their hand up . Some of their effects are also rather passive compared to other Attribute s , such as FIRE ' s aggression and EARTH ' s reliable defensive tactics . All in all , though , a well - prepared Water Deck can be an extremely difficult obstacle to overcome .