Casino Royale has a great 2-coat formula. It is a rich, royal (ha) plummy purple. Although it's not the most unique color (and granted, I don't have the largest collection around) I didn't have a color like this already. The closest being Essie Big Spender which is much more red/pink leaning and a little lighter than Casino. With all that said, I think this is a really beautiful color and very easy to work with. It's a little darker in real life than in these photos.
Bizarre Blurple is, to me, just awesome. I kept staring at this color when it was on my nails! It also had a great 2-coat formula, and as the name would suggest it is a deep blue-purple shade. It leans more towards the blue side and has a shimmer finish. It's just so pretty!
I did a subtle stamp over this with BM321 using Layla Mercury Twilight. I saw AmyGrace at The Polished Perfectionist stamp with a Layla holo polish here, which I loved. Hers turned out much better than mine, but I was still happy with the results. My base colors were too pretty to cover up too much!