Dragonair #18 from Base Set is a 1st edition rare card that currently sells for about $146 ungraded, with graded copies ranging from $255 at grade 7 to $5,000 at grade 10. TCGrader's AI has graded 7 copies of Dragonair (Base Set), averaging 7.5 overall. A grade 10 copy sells for around $5,000, about 34× the $146 raw price, so high-grade copies are worth grading.