Quote Originally Posted by giftie View Post
Earth stance is a flat 10% increase of base damage.
On an average of 20 rolls without Earth Stance with a 19-20/x3 bow, you have 1 automiss, 17 base hits and 2 x3 crits for a total of 23xbase damage over 20 rolls.
With Earth Stance, you have 1 automiss, 17 base hits and 2 x4 crits for a total of 25xbase damage.
Earth Stance is therefore an increase of 8.69%