Sidisi, Undead Vizier #120 from Dragons of Tarkir is a foil rare card that currently sells for about $17.05 ungraded, with graded copies ranging from $64.00 at grade 9 to $70.00 at grade 9.5. A grade 9.5 copy sells for around $70.00, about 4.1× the $17.05 raw price, so high-grade copies are worth grading.