Strong Buy
If you own a clean copy of Pikachu #56 from Unified Minds, this is a card to get graded. A 533% Return on Grading comes from the spread between $4.78 raw and $599.99 graded. Returns like this tend to attract sellers, so the raw price may not stay this low.
Among the 92 cards in Unified Minds with PSA 10 sale data, Pikachu ranks 3rd for Return on Grading and 18th 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 $227.00. 44 of the 92 clear a 100% Return on Grading.