Board Thread:Event Discussion/@comment-70.166.177.77-20131207054710/@comment-70.166.177.77-20131210072332

Additionally, I gave the chance of drawing Motochika/Melusine under the assumption that out of the 57 cards listed for 3* rare summons, you have an equal chance of getting any one of them. Therefore, the chance of getting either motochika or melusine would be exactly 2/57 * .777 which gives you 2.73%.

Zynga could easily make those two slightly less likely than the other 55 cards. I don't know, I'm a free player and have better things to use my money on.