Board Thread:General Discussion/@comment-34465952-20180125161027/@comment-29680667-20180125164007

Conventional wisdom says that Expose is not good. To understand why, you need to know about the dice probabilities. On an attack die, there are 3 hits, 1 critical hit, 2 focus, and 2 blank. This means you have a 50% chance of getting some sort of hit. With a focus token this increases to 75%.

With Kath, you have 3 attack dice. That means you expect to get 1 or two hits (there is a 37.5% chance of either of those, and a 12.5% of getting 3 hits).

If you use expose to add another attack die, you now expect to get 2 hits. So this means 4 dice is better than three. Its still a 37.5% chance of two hits, but now there is a 25% of getting three, and a 6.25 of getting 4, and a 25% of getting only 1.

But, if instead of using a fourth die, you use a focus token, you have a 42% chance of getting 3 hits, 42% chance of getting 2 hits, and a 14% chance of 1 hit.

So with expose you have the chance for a higher amount of damage, but on average the focus is slightly better (the total probability of gettin 2 or 3 is 84%, while with expose the probability of 2, 3, or 4 is 68.75).

So my first suggestion is to use something other than expose. Using your action to focus is better. There is the chance you won't need it on your attack, in which case you have it for if you are attacked.