Steven's Metagross ex #289 from Ascended Heroes is a holo illustration_rare card that currently sells for about $61.71 ungraded, with graded copies ranging from $84.00 at grade 9 to $220 at grade 10. TCGrader's AI has graded 5 copies of Steven's Metagross ex (Ascended Heroes), averaging 9 overall. 100% scored 9 or higher, so clean copies are common and centering usually decides the top grades. A grade 10 copy sells for around $220, about 3.6× the $61.71 raw price, so high-grade copies are worth grading.