You can activate this card during your Battle Phase to extending the loop necessary for executing Sphreez OTK.
If your "Daigusto Sphreez" is sent to the Graveyard, use this card to Special Summon it back to the field to quickly restore your field defenses (along with returning two other Gusto monsters of use back to your deck).
However, make sure that you still have some Trap Cards to protect her, since your opponent will always use any card effects to destroy her anyways.
Use this card before your End Phase to Special Summon "Daigusto Eguls" back to the field so you can then use its effect (just make sure there are other WIND-Attribute monsters remaining in your Graveyard to use for the cost of "Daigusto Eguls" effect, preferably ones that is not a Gusto monster).
Chain this card to a field clearing effect to Special Summon "Gusto Squirro", "Gusto Falco" or "Gusto Gulldo" and replace them with another Gusto monster afterwards (with their respective effects) to maintain a field defense. However, in case of "Judgment Dragon" and "Demise, King of Armageddon", your opponent will still be able to clear the field repeatedly with their effects as long as their Life Points remains for the cost of those monster effects, so make sure that you choose a Gusto monster that can replace itself again when necessary.
This card, along with other Gusto support cards, can help you regulate your Graveyard for fulfilling the Summoning requirement of "Windrose the Elemental Lord".