In addition to the base set, there were only two parallels. That means a rainbow of three--not really enough to even call it a rainbow.
Whatever you want to call it, here it is...
My printing plate is the cyan plate. It was a BIN at a very reasonable price for a 1/1, so I snagged it right away. The black plate has already been sold, that that means there are still two more out there...two more I will not be interested in even though it would make this rainbow a little bigger.
We'll just keep this a three-card rainbow.