Tezzeret, Cruel Machinist #286 from Core Set 2019 is a foil mythic card that currently sells for about $1.42 ungraded, with graded copies ranging from $43.00 at grade 9 to $47.00 at grade 9.5. A grade 9.5 copy sells for around $47.00, about 33× the $1.42 raw price, so high-grade copies are worth grading.