Sphere Field A Sphere Field ( スフィア ・ フィールド " Sufia Fīrudo " ) is a special arena made of an enormous energy ball that originates from the in the " Yu - Gi - Oh ! ZEXAL " anime . It is a simulation of the environment of parallel worlds with various sorts of coloration , and is used either to encase " Number " cards or grant various abilities to those who Duel within them . Versions . Astral ' s . When Yuma Tsukumo opened the gate to the Astral World , a miniature Sphere Field encasing the " Numbers " appeared , trapping Yuma . It then glowed and suddenly disappeared , hereby spreading the other fifty " Numbers " across the Human World . Astral can generate his own natural Sphere Field . Astral did so when recalling the memories he acquired from the fifty collected " Numbers " inside the Emperor ' s Key . Mechanical . Dr . Faker designed his own Sphere Field and began construction of it five years prior to the World Duel Carnival , assisted by Byron Arclight . Upon its completion , Faker used it to absorb the energy of the " Number s " . It was utilized in combination with the powers of Hart Tenjo to attack the Astral World . During the final match of World Duel Carnival , the Sphere Field was generated on top of the Duel Tower for the Duel between Yuma and Vetrix , allowing Faker to gather more energy from the " Numbers " they use . It was treated as a card , which allowed both players to random ly Xyz Summon " Numbers " by using two monsters in their hands of the same Level as Xyz Material s . Later on , after Yuma defeated Vetrix , it reacted and revealed its final effect which was to take away all the " Numbers " from their holder and to absorb the Duelists themselves once the Duel was concluded . Yuma used " ZW - Lightning Blade " to anchor himself and Vetrix in place to prevent this from happening , but Vetrix sacrificed himself to release the souls of his victims . The Sphere Field then teleported itself to the basement of Heartland Tower . In the basement of Heartland Tower , the Sphere Field was plugged into the Sphere Field Cannon along with all " Numbers " collected from Yuma and Vetrix . Faker planned to use Hart to power the Sphere Field Cannon to destroy the Astral World with Yuma and Astral inside . After Kite , Shark , and Tori ' s interference , Astral undid ZEXAL and ejected Yuma from the Sphere Field in order to rescue Hart and the Astral World . When Vector possessed Dr . Faker , Hart disabled the Sphere Field Cannon letting Astral and Yuma morph and defeat Vector which destroyed the Sphere Field and Sphere Field Cannon . Sphere Field Cannon . The Sphere Field Cannon ( スフィア ・ フィールド砲 " Sufia Fīrudo Hō " ) is a machine created by Dr . Faker to destroy the Astral World , located below Heartland Tower . After the finals of the World Duel Carnival ended , the Sphere Field moved to the cannon , destroying Heartland Tower in the process . A slot within it allows for Hart to integrate with it , with his powers being used with the " Numbers " to power it , using Astral and Yuma as bullets to completely destroy the Astral World . It can launch trash directly into the Astral World via a portal . After the conclusion of the Duel between Yuma , Shark and Kite against Faker , the cannon was destroyed when the room collapsed . Sphere Cube . In order to acquire the " Number s " , Barian s developed Sphere Cubes which generate a red Sphere Field , allowing them to gather " Numbers " themselves . Dumon gave three of them to Mizar , one for himself and two for Girag and Alito . The Sphere Cube projects a Sphere Field in order for the Barians to show their true Barian form as they cannot show it in a low - energy world such as the Earth and such must retain their human form . Crest . With the bracelets developed by Quinton , the Arclight Family are capable of creating a Sphere Field as Quinton and Trey did so when they combined the power of their bracelets . This Sphere Field appears to be similar to Astral ' s version , but was deployed with the intent of trapping Dumon and Marin within its confines to prevent them from pursuing Kite and Yuma .