Voltorb is card #117 of 132 in Secret Wonders (2007), a Common illustrated by Satoshi Ohta. At about $3.44 it is the #84 most valuable card in the set. In a Secret Wonders booster it turns up about once every 10 packs. It is one of 40 Voltorb cards printed so far.
1999Base Set
2003Skyridge
2007Secret Wonders
2012Boundaries Crossed
2016Evolutions
2019Hidden Fates
2023151
2026Ascended Heroes

















See the full Secret Wonders card list
An ungraded Voltorb from Secret Wonders sells for about $3.44. A PSA 10 is worth more, roughly $27.52 by our estimate, and a PSA 9 around $9.63.
It is a Common, and it shows up about once every 10 Secret Wonders packs.
Satoshi Ohta drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Secret Wonders booster packs in your browser with the set's real pull rates and keep what you pull in a digital binder. No real cards, nothing to buy.