Number 6: Chronomaly Atlandis

Number 6: Chronomaly Atlandis was introduced in the Return of the Duelist booster set, released in the West in 2012. It belongs to the Chronomaly archetype, a series of cards inspired by real-world out-of-place artifacts—mysterious objects found in archaeological contexts that seem to defy the technological capabilities of their time. The card represents the fusion of ancient engineering with futuristic monster design, reflecting the thematic focus of the Yu-Gi-Oh! Zexal era, which centered on powerful Xyz monsters sourced from celestial or mythical origins.

The card was designed as a high-level Xyz monster, specifically an Rank 6 machine, and became a notable secret-rare entry in the set due to its intricate artwork and unique ability to equip monsters from the graveyard. Its aesthetic, featuring metallic plates and glowing energy, was crafted to evoke the image of an ancient, mechanized deity. Upon its release, it was received as a niche but effective tactical card, valued by players who favored the unique playstyle of the Chronomaly deck and its ability to drastically alter life point totals.