![Seviper [Reverse Holo] #23](https://storage.googleapis.com/images.pricecharting.com/0dea858e0ed75bf33f853ecfa0f0868da10e22111cd1b50de6bb6d018e248d66/1600.jpg)
Pokemon Power Keepers · #23 · Base · Feb 2007
Should You Grade?
Low grading population — gem rates based on only 59 graded cards may be unreliable, and the market for this card in graded form may be illiquid. The gem rate is only 12% — you'll need a very clean copy to hit PSA 10. Only 57 sales per year — it may take time to find a buyer at full price.
Factors in grading cost, turnaround time, and compounding — how fast you can reinvest profits into the next flip.
Shows the best-value tier from each grading company based on EV, cost, and turnaround. Pop = total graded population; 10s = grade 10 count.