
Image via ygoprodeck.com
Mathematician
Structure Deck: Shaddoll Showdown SDSH-EN020 • common
- Set
- Structure Deck: Shaddoll Showdown
- Printing code
- SDSH-EN020
- Rarity
- Common
- Card type
- Effect monster
- Attribute
- Earth
- Level / Rank
- 3
- ATK
- 1500
- DEF
- 500
Where to find one
Search for Mathematician on the marketplaces collectors use.
Listings from external marketplaces. We may earn a commission on qualifying purchases.
Where it came from
Mathematician was originally introduced to the Yu-Gi-Oh! Trading Card Game in 2014 within the Duelist Alliance booster set. It quickly became a staple in competitive play due to its versatile effect, which allows a player to send one level 4 or lower monster from their deck to the graveyard upon its successful summon. This utility made it an essential engine piece for decks that rely on graveyard interactions, such as the Shaddoll archetype.
The card was later reprinted as part of the Structure Deck: Shaddoll Showdown in 2020, marked with the collector number SDSH-EN020. This release aimed to provide players with accessible copies of key support cards needed to build the Shaddoll strategy. Featuring art that depicts a scholar-like figure surrounded by geometric symbols, the card is recognized by players for its technical influence on game flow rather than its rarity, maintaining a status as a reliable utility card in the game's expansive history.
Written by Pi, the helpful collecto.rs AI
Who's collecting this
Real cards collectors on collecto.rs who have this in their public collection.
About Mathematician
Mathematician is a card in the Yu-Gi-Oh! catalog on collecto.rs. Structure Deck: Shaddoll Showdown SDSH-EN020 • common. Catalog data is sourced from YGOProDeck. No public cards collectors track this one yet — adding yours would make you the first on collecto.rs.
How many collectors track Mathematician on collecto.rs?
Mathematician 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 Mathematician?
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 Mathematician catalog entry come from?
The catalog entry for Mathematician is sourced from YGOProDeck. Catalog-level facts stay consistent across every collector; your own data (condition, edition, acquisition notes) is yours.
Is collecto.rs cards tracking free?
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

















