Your search for "Tiamat 1017" revealed the following:
Remember those who have passed with fondness as you sleeve up your deck with the Día de Muertos Matte Dual Art Sleeves. The tender and otherworldly artwork was created by artist Diego Andrade, who drew inspiration from the deep roots...
Tiamat - Here be Dragons (Foil) (SLD) from Secret Lair Drop, available at 401 Games Canada. Rarity: Mythic Rare Finish: Foil Artist: Pedro Potier Card Text: Here be DragonsFlyingWhen Tiamat enters the battlefield, if you cast it, search your library...