Every Mega Signal card we price, most valuable first. Prices are what copies actually sold for, updated daily.
What a Mega Signal card is worth
The most valuable Mega Signal on this list is Mega Signal from Mega Evolution at $1.08£0.81€0.95, and the 6 priced copies across 4 sets are worth $3£2€3 together. Most of that sits in a handful of printings: the older the set and the scarcer the print run, the wider the gap to the rest.
Mega Signal is printed in Japanese as well: 3 cards across 2 sets, the most valuable of them Mega Signal from Mega Symphonia at $0.40£0.30€0.35. Switch the list above to Japanese to read those, or to Both to rank the two catalogues against each other.
The highest PSA 10 on record for Mega Signal sold for $33£24.84€29.06. reverse holo printings are priced separately from the standard card, because they do not trade at the same money.
If you are trying to identify which Mega Signal you have, the set name is printed on the card and the collector number sits in the bottom corner. Open the card here and the page carries every printing of it, the graded prices, and whether grading the copy is worth the fee. Sets to start with: Mega Evolution, Southeast Asia Exclusives, Prize Pack Series Cards.