Luna's Decks

Luna plays an Ancient Fairy Deck, consisting of folkloric creatures and enchantments, mostly in the form of Fairy, Plant and Beast-Type monsters. Several of them are based on the spirits that Luna befriended while at the Duel Monster universe, notably her Spirit Partner; "Kuribon", "Regulus", and her Signer Dragon; "Ancient Fairy Dragon". She carries many support cards that protects them from harm, including the field spell, Ancient Forest, which prevents any monster from switching to Defense Position and destroys them after they attack. Although Luna rarely dueled in the anime, she is available to duel in every Yu-Gi-Oh! 5D's game up to date.

Fortune Cup
Luna uses a Spirit Deck. It is focused around defensive tactics through cards such as "Kuribon" and "Ancient Forest".

Leo's Deck
Leo's Decks#Dark Signer After returning from the Duel Monsters Spirit World, Luna takes over for Leo in his duel against Devack, using his deck.

World Racing Grand Prix
Luna uses a Plant/Spirit Turbo Deck.

Manga
Luna's Deck within the manga seems to consist of a mix of her Forest cards along with Leo's Morphtronic cards in order for her to successfully Summon their Duel Dragons.

Luna's part of the Deck uses the Forest series and the Fairy Tale archetype to manipulate the activation of Field Spell Cards and trigger the effect of her "Fairy Dragon - Ancient".