Consider
Grading Lillipup #170 from Obsidian Flames is a marginal call rather than an obvious one. Raw copies trade around $0.19 while PSA 10s sell for about $109.99, a 22% Return on Grading. A 9 instead of a 10 would likely wipe out the margin here, so be honest about condition.
Among the 68 cards in Obsidian Flames with PSA 10 sale data, Lillipup ranks 21st for Return on Grading and 22nd by PSA 10 price. Of the 2 Common cards with PSA 10 sales, it is 1st 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.