Argh, I remember putting in Sky Pirate wannabe when I was messing around with variations but I had a lower case P.
Yep, that's all the new ones. Looks like that makes for two more passwords (Tall, dark, and silent and Pintsized Powerhouse) that are completely different. Undead minions is different too I guess since the original clue is literally just "Undead", but I'll give them a pass there.
you'll get it if you just keep playing it doing other things (grinding for shards, filling critical charts, etc.). Grinding specifically for a card is a bad idea simce they are so random, so just keep playing and checking back ocassionally. I am almost at all L9's and I have played the game for far fewer hours than some people here.