Talk:Attack/@comment-75.169.23.51-20180107184706/@comment-27198062-20180108233827

It's the amount of bonus arrows fired. So a Castle with 11+4 (4) attack fires a total of 5 arrows per volley. Each of the 5 arrows deals the full 11+4=15 damage for a total of 15*5=75 damge per volley (provided that each arrow hits its mark, as the are fired in a light spread).