Consider
Whether Pikachu (Ascended Heroes) is worth grading comes down to condition. The gap between the $0.63 raw price and the $118.25 PSA 10 price gives a 30% Return on Grading. A 9 instead of a 10 would likely wipe out the margin here, so be honest about condition.
Among the 125 cards in Ascended Heroes with PSA 10 sale data, Pikachu ranks 14th for Return on Grading and 24th by PSA 10 price. Of the 5 Common cards with PSA 10 sales, it is 1st for Return on Grading. The median PSA 10 in this set sells for $54.99. 5 of the 125 clear a 100% Return on Grading.