The Ancient Treasures are a series of cards used by Tenzen Yanagi, as well as Yusei Fudo briefly, in the Yu-Gi-Oh! 5D's anime. According to the anime, it is possible that these cards are illegal, but currently that is not a problem. This series focuses on Rock monsters with 0 ATK to do its bidding, and nearly all of the cards have a negative effect (paying LP, discarding, etc.). These cards work well with "Curse Reflection Doll" and "Triangle O" to deflect the negative effects, however. All members of this series have 0 DEF, except for the 2200 DEF "Ashoka Pillar". They are also all Level 1 EARTH monsters, except for the following:
These cards are based on ancient objects from various locales around the world. Its theme would later be reused in the form of the "Chronomaly" archetype by Trey in Yu-Gi-Oh! ZEXAL.