A Deck reliant on "Superancient Deepsea King Coelacanth", since it can shuffle back WATER Fish-Type monsters to the Deck, where they can be Special Summoned via the effect of "Coelacanth".
A "Frog" Deck, since it can shuffle back copies of "Des Frog" (which are more efficiently Summoned from the Deck via cards like "Des Frog" and "Inferno Reckless Summon") and "T.A.D.P.O.L.E." (which are more efficiently sent to the Graveyard via cards like "T.A.D.P.O.L.E." and "Swap Frog").
"Salvage" can be used to provide monsters for this card to shuffle back.
This card can be used to shuffle back extra copies of "Hydrogeddon", so that they can be more efficiently Summoned via the effect of another "Hydrogeddon".