Kite Tenjo's Decks

Kite plays a "Photon" Deck, focused on swarming the field with LIGHT-Attribute monsters, which he can then use to Summon his "Number" monsters and/or his ace card, "Galaxy-Eyes Photon Dragon". According to Mr. Heartland, Kite's Deck was created by him and Dr. Faker by using science from another dimension.

Pre-World Duel Carnival
As "Galaxy-Eyes Photon Dragon" requires two Tributes of monsters with 2000 or more ATK, Kite includes cards which help him quickly fulfill that condition. His "Numbers" can be used for this purpose, or cards such as "Photon Spear", "Photon Thrasher" and "Photon Crusher". He also includes many cards which counter Xyz Monsters, such as "Galaxy Storm" and "Forced Release", as well as cards which counter Set cards, such as "Photon Cerberus" and "Photon Hurricane". In this way, Kite's Deck disrupts the opponents' current strategy, forcing them to come up with an entirely new one.

World Duel Carnival Finals
After acquiring "Neo Galaxy-Eyes Photon Dragon", Kite started to use more Level manipulation cards such as "Shift Up" as well as cards to gather its Xyz Materials more easily through cards like "Photon Caesar". In addition, he utilizes the "Galaxy" archetype to further assist in Summoning his newfound power.

Collected Numbers
Prior to his first Duel with Yuma, Kite had already collected eleven "Number" cards. After the mentioned Duel he was shown earning four more of them: one from Fortuno, two from 2 other holders, and one from Cinco. Only five were known by name and it's unknown if he included all of them in his Extra Deck. He eventually lost all of his "Numbers" to Vetrix.

Manga
Like his anime counterpart's, Kaito's manga Deck is focused around swarm tactics in order to Summon stronger monsters such as "Galaxy-Eyes Photon Dragon" and "Photon Wyvern".