Talk:Da Vinci and The 7 Counterfeit Heroic Spirits/@comment-27137554-20160417225946/@comment-28048698-20160418014424

@Stray Bird: Well, with or without rate up we have 1% of obtaining any Servant. In my opinion this specific rate doesn't go up even if the 10-roll guarantee us one 4*. If there were some kind of "pool", where everytime we draw one card it doesn't appear anymore in the "pool", then yeah, that would help us, but this isn't the case.

Now, once we are lucky enough to draw that 1%, we have X% of obtaining the rate-up Servant and Y% of obtaining something else. In another article (don't remember what article was) someone (don't remember the user neither :P Hehe) posted one reddit link where te whales talked about how much was the rate of Alter Jeanne, and how much was the previous rate-up Servant rate. According to them it is 50%-50%.

That means we have 50% of obtaining one rate-up and 50% of obtaining one normal. If the rate-up is only one, then that Servant have 50%. If there are many rate-up then we divide 50% among the number or rate-up Servants. If the rate up are, let's say, Gilgamesh, Tamamo, Artoria, Schatach and Okita (five Servants), then each of them would have 10%.

TL;DR: First we calculate if we obtain that 1%. Then we calculate if we obtain that 50%. Finally we calculate what is the Servant we obtain among the rate-up ones (50% / Number of rate-up Servants).