Talk:Attack damage/@comment-173.61.187.61-20120211185142/@comment-4087140-20120229033438

Attack speed stacks additively. Leona currently has the median attack speed at level 18, having a base of 0.625 and gaining 49.3% to make 0.933 in total. Two grant another 110%, so the 49.3% increases to 159.3%, leading to a total attack speed of 1.621. Compared to her normal attack speed at level 18, that's a 73.7 percent increase in DPS.