This figure may not be among the first that collectors think about when they do a round-up of the rarest figures, but for a long time Ambassador Spock on 7th season Canadian card has been very tough to find.
Are there even 100 of these out there? That's doubtful, to be honest, given how infrequently they trade. But if you think about it, this figure is now far rarer than the Sarek and Troi with pogs on Canadian card. Those were scalped early on, and a lot of them stayed in the package. But not this one, because there wasn't really any buzz about it, and only a few thousand are thought to have been made.
Out of the Canadian 7th season carded figures, this one is perhaps the second toughest to find after 2nd release Crusher with pog, of which even a good photo did not exist until like last year.