Underground Expedition

The 2018 Celestial Storm Underground Expedition is an ultra rare Trainer card, illustrated by Kagemaru Himeno. Raw near-mint copies trade around $37.88, while a PSA 10 is modelled near $113.64 and a PSA 9 near $56.82. In its original set it is a chase card — roughly a 1-in-467 booster pull (modelled, not official). Underground Expedition has 3 other printings in the catalogue.