Poltchageist #171 from Twilight Masquerade is a holo illustration_rare card that currently sells for about $5.10 ungraded, with graded copies ranging from $19.67 at grade 9 to $74.00 at grade 10. A grade 10 copy sells for around $74.00, about 15× the $5.10 raw price, so high-grade copies are worth grading.