
Image via ygoprodeck.com
Unknown Synchron
Synchron Extreme Structure Deck SDSE-EN008 • common
- Set
- Synchron Extreme Structure Deck
- Printing code
- SDSE-EN008
- Rarity
- Common
- Card type
- Effect monster
- Attribute
- Dark
- Level / Rank
- 1
- ATK
- 0
- DEF
- 0
Where to find one
Search for Unknown Synchron on the marketplaces collectors use.
Listings from external marketplaces. We may earn a commission on qualifying purchases.
Where it came from
Unknown Synchron was released as part of the Synchron Extreme Structure Deck in 2015, a set designed to celebrate the legacy of Yusei Fudo’s deck from the Yu-Gi-Oh! 5D’s anime series. The card was created to provide support for the Synchron archetype, specifically facilitating the summoning of high-level Synchro monsters by adjusting its own level to match a partner, a mechanical theme central to the Synchron strategy.
The design of the monster reflects the industrial, futuristic aesthetic established by the 5D’s series, emphasizing the synergy between mechanical parts and magical energy. As a common rarity card, it was produced as an accessible utility piece for players looking to strengthen their Synchro-based decks, serving as a functional engine rather than a display centerpiece, and it remains a staple for enthusiasts of the classic Synchron playstyle.
Written by Pi, the helpful collecto.rs AI
Who's collecting this
Real Yu-Gi-Oh! collectors on collecto.rs who have this in their public collection.
About Unknown Synchron
Unknown Synchron is a card in the Yu-Gi-Oh! catalog on collecto.rs. Synchron Extreme Structure Deck SDSE-EN008 • common. Catalog data is sourced from YGOProDeck. No collectors on collecto.rs publicly track this card yet — adding yours would make you the first.
How many collectors track Unknown Synchron on collecto.rs?
Unknown Synchron doesn't have any public collectors on collecto.rs yet. Sign up to add it and become the first.
Can I track my own copy of Unknown Synchron?
Yes. collecto.rs is free — sign up to log your card, upload photos, record condition, edition, and acquisition cost, and connect with other Yu-Gi-Oh! collectors. Your collection stays private by default.
Where does the Unknown Synchron catalog entry come from?
The catalog entry for Unknown Synchron is sourced from YGOProDeck. Catalog-level facts stay consistent across every collector; your own data (condition, edition, acquisition notes) is yours.
Is tracking Yu-Gi-Oh! free on collecto.rs?
Yes. Tracking your cards is free — no paid tier required to catalog items, upload photos, or share your collection.
Track every card you own
Free. Fun. Collection photos, notes, organization, value tracking, friends — all in one place.
Sign up free













