Consider
Grading Abra (Twilight Masquerade) is a marginal call rather than an obvious one. Raw copies trade around $0.24 while PSA 10s sell for about $119.00, a 32% Return on Grading. A 9 instead of a 10 would likely wipe out the margin here, so be honest about condition.
Among the 92 cards in Twilight Masquerade with PSA 10 sale data, Abra ranks 10th for Return on Grading and 16th by PSA 10 price. Of the 3 Common cards with PSA 10 sales, it is 2nd for Return on Grading. The median PSA 10 in this set sells for $57.14. 4 of the 92 clear a 100% Return on Grading.
