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Grading Granbull from Obsidian Flames isn't worth it at current prices. The gap between the $0.13 raw price and the $35.00 PSA 10 price gives a -61% Return on Grading. Grading and shipping fees would eat whatever margin is there.
Among the 68 cards in Obsidian Flames with PSA 10 sale data, Granbull ranks 46th for Return on Grading and 48th by PSA 10 price. Of the 8 Uncommon cards with PSA 10 sales, it is 6th for Return on Grading. The median PSA 10 in this set sells for $49.38. 13 of the 68 clear a 100% Return on Grading.
