The chance of Skatole to appear at the Shell Game

the-binding-of-isaac

In the Arcade room when you play the Shell Game with the beggar there is a chance of him revealing Skatole under one of the Host Skulls when betting.

I know when it appears you have a 33% chance of winning (nearly 55% when having Lucky Foot) but the chance of it appearing is not stated anywhere.

Is it completely random or is there a set chance percentage of it appearing? Or is it based on your Luck stat?

Thanks in advance.

Best Answer

According to the mechanics guide, the chances of revealing Skatole is 1/13.