Water XYZ & Legendary Fisherman

Main Deck:

The Legendary Fisherman - Used to get out The Legendary Fisherman III (boss card). Can be normal summoned without tribute if A Legendary Ocean is on the field. Can also be summoned with Lantern Shark.

The Legendary Fisherman II - Same as The Legendary Fisherman, but unaffected by monster card effects.

The Legendary Fisherman III - Banishes opponent's monsters on special summon. Can't be destroyed by battle or card effects (also unaffected by Spells/Traps). Can be summoned if The Legendary Fisherman, or The Legendary Fisherman II is on the field.

Citadel Whale - Wipes opponent's monster zone and can be summoned from GY.

Warrior of Atlantis - Can be used to get A Legendary Ocean, or XYZ. Also decent attack.

Buzzsaw Shark - One of 2 cards mainly used for XYZ. Summon, then activate to get Lantern Shark and XYZ to Valiant Shark Lancer (can detach one for a monster pop), then XYZ into Full Armored Crystalzero Lancer.

Lantern Shark - The other main XYZ material. Can be used for previous combo, or can Normal Summon to get a lvl 5 monster Special Summoned. Ex: Normal Summon Lantern Shark, then Special Summon The Legendary Fisherman, then tribute that to Special Summon The Legendary Fisherman III.

Abyss Soldier - Used to return opponent's cards back to hand.

Beautunaful Princess - Used to get Buzzsaw Shark and start XYZing.

Barrier Statue of the Torrent - Stops opponent from special summoning.

A Legendary Ocean - Field Spell. Acts like Umi, but reduces all water monsters' lvl by 1, meaning you can Normal Summon The Legendary Fisherman and The Legendary Fisherman II without tributes.

Rage of Kairyu-Shin - Pretty cool removal card.

Moray of Greed - Pot of Greed water version.

Feast of the Wild LV5 - Can Summon A Legendary Fisherman.

Monster Reborn - Not sure what this does.

Sea Stealth Attack - Can retrieve A Legendary Ocean from GY. Protects Spells/Traps & lets the Fisherman cards basically win any battle.

White Howling - Spell negates.

Paleozoic Dinomischus - Pops a card and returns as a normal monster (Water) if a trap is activated.

Solemn Strike - Nice for denying plays.

Tornado Wall - Protects against battle damage if A Legendary Ocean is up.

 

Extra Deck:

Toadally Awesome - Omni-Negate summoned by Bahamut Shark.

Bahamut Shark - Summon, then detach for Toadally Awesome.

Abyss Dweller - Extra attack is always nice.

Number 101: Silent Honor ARK - Eats an opponent's monster.

Number 103: Ragnazero - Situational but works.

Evigishki Merrowgeist - Also situational but works.

Number 19: Freezadon - Can be used to help with the XYZ detaching.

Number 11: Big Eye - Hard to get out but takes control of opponent's monsters.

Mistar Boy - More ATK for the Water bois.

Knightmare Phoenix - Can be used to destroy Spell/Trap.

Valiant Shark Lancer - XYZ from Lantern Shark & Buzzsaw Shark (possible detach for a monster pop), then XYZ into Full Armored Crystalzero Lancer.

Full Armored Crystalzero Lancer - XYZ from Valiant Shark Lancer then you can detach for a one turn negate on all monsters. Also has a lot of ATK.