Poltchageist #171 from Twilight Masquerade is a holo illustration_rare card that currently sells for about $5.77 ungraded, with graded copies ranging from $20.00 at grade 9 to $62.58 at grade 10. A grade 10 copy sells for around $62.58, about 11× the $5.77 raw price, so high-grade copies are worth grading.