Metagross #178 from Temporal Forces is a holo illustration_rare card that currently sells for about $30.00 ungraded, with graded copies ranging from $18.50 at grade 7 to $169 at grade 10. TCGrader's AI has graded 3 copies of Metagross (Temporal Forces), averaging 8.8 overall. 33% scored 9 or higher, so a strong copy is achievable but far from guaranteed. A grade 10 copy sells for around $169, about 5.6× the $30.00 raw price, so high-grade copies are worth grading.