Shark Domain

Rank 4 toolbox.

Gameplan:

Get 2 lv4 monsters on the field and make bahamut shark. Go into levirtue dragon for the virtue stream trap or make toadally awesome for the early game negate. Both lines go into the armored xyz package with xyz armor fortress.

Combos:

1 card combo with buzzsaw shark:

Normal buzzsaw ->eff -> summon big jaws from deck > make bahamut-> levirtue> add trap -> levirtue eff to add back big jaws from gy to hand -> overlay fortress over bahamut -> fortress eff to add reincarnation unveiling mail -> mail equip to fortress -> summon big jaws from hand-> add abyss shark -> abyss shark eff to add hydrojet shark or any other extender -> summon hydrojet shark -> send armored xyz from deck to gy ->make dweller or kragen -> make full armored dark knight lancer with fortress -> end phase: equip mail onto any xyz you control.

This one card combo has a lot of variation like what you summon off bahamut or you can add different extenders off big jaws and abyss shark.

Engines:

Frogs:
The frog engine has the abiltity to end on toadally awesome without bahamut by utilizing swap frog eff twice to dump dupe frog and ronintoadin.

Sharks:

The sharks are the backbone of the deck allowing easy access to rank 4 xyz summons for combo or breaking the board with different tools.