Your deck is in the top box, and the cards you can add are in the lower box
This card, Supervise, would be beneficial in a Gemini monster-focused deck, enhancing their effects and providing a way to Special Summon a Normal Monster from the Graveyard

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Sustainable materials: acid-free and without PVC, they prevent discolouration and keep your cards permanently in pristine condition - ideal for playing and displaying
Before we get into the real list, we wanted to give a quick shout-out to Urban Retreat