Yu-Gi-Oh: The Keeper of the Numbers.
53 parts Complete This tells the story of a duelist named Jaden, who resides in Heartland City in the year 2060 and who has mysteriously no recollection of his past. His duelling skills weren't anything to be excited about until one day, something happened.
During a duel, Jaden gains a new monster called "Number 39: Utopia."
After this duel, Jaden gains a mission in collecting all number cards.
In this dimension, they have a new summoning technique called Xyz Summoning.