Talk:Chests/@comment-25008602-20161207204259/@comment-25856498-20161219143128

The chance to get a Legendary from a SMC is 6 times that of a Magical Chest in the same Arena. This is because of the number of cards the SMC contains relative to the Magical Chest, as both SMC and Magical Chest have the same internal "Legendary Factor" values (values which help determine the probability of a Legendary card)

That being said, the probability of getting a Legendary in a SMC should roughly be the same as getting a Legendary from six Magical Chests.