Like most Magic: The Gathering cards, the value of Gix, Yawgmoth Praetor depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (The Brothers' War Promos)
Apparently, it was a thing back then to sign ones cards so that if they were ever stolen, it would be easy to identify who the true owner is
$0.69 Twisted Spider-Clone Marvel's Spider-Man Eternal-Legal $9.99 Impostor Syndrome Marvel's Spider-Man $15.99 Spider-Man, Peter Parker Marvel's Spider-Man Eternal-Legal $9.99 Arachnogenesis Marvel Eternal-Legal $8.49 Spectacular Spider-Man (0014 - Borderless) Marvel's Spider-Man Variants $3.99 Double Trouble Marvel's Spider-Man Eternal-Legal $12.99 Spider-Man, Miles Morales Marvel's Spider-Man Eternal-Legal $1.29 Future Flight Marvel's Spider-Man Eternal-Legal $20.99 Venom, Eddie Brock Marvel's Spider-Man Eternal-Legal $4.49 Miles Morales Marvel's Spider-Man $16.99 Spider-Man 2099, Miguel O'Hara Marvel's Spider-Man Eternal-Legal $1.49 Lethal Protection Marvel's Spider-Man Eternal-Legal 0 results found
Training Grounds affects only creatures you control on the battlefield
2 The Thirteenth Doctor (Serialized) Thirteen is a lucky number
