Age: 4 (Has the intelligence of a sixteen year old, but was only built four years ago.)
Personality: He is relatively ignorant, having only gained sentience recently, but is good-natured and never has the worst intentions for someone at heart. He occasionally has wild mood swings, and he really doesn't think about things very often.
Bio: Built four years ago by the government, then sent to Duel Academy as a progressive education aide used for improving the students' dueling skills via challenging them to a duel, Leon gained sentience through a programming error on the flight to Duel Academy. A theoretical version of what he might look like is displayed on a digital screen that rolls around the school on a single wheel. This design has long brownish hair spiked to his right at all times, a traditional white shirt with the letter 'L' displayed on it, covered by a stylish, yet somewhat garish golden leather coat. This design also contains khaki pants and red high-top Converse sneakers. When delivered to the Academy, he begged not to be melted into scrap for his sentience, so they worked around the issue the only way they could: they enrolled him as part of the Xyz dorm.
Deck: Galaxy Photon, also containing No. 107 and No. 62.