Most expensive SM6b: Champion Road cards

4 SM6b: Champion Road cards with current prices, from most to least expensive; the most valuable raw card is Scyther 004/066 ($3.58).

Scyther 004/066$3.58Croconaw 016/066$1.66Rainbow Energy 066 066/066$1.49Rare Candy 055/066$1.49

All Pokémon Japan sets