Of course, they're common cards in the new Magma/Aqua set...
Here is where some of them come from:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3179655122&category=4698
Here is where some of them come from:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3179655122&category=4698