Talk:Darius/@comment-26419429-20151011230840/@comment-11218751-20151011231442

Your maths is wrong.

Bonus AD ≠ Total AD. Bonus AD is Total AD minus Base AD.

Base AD = Base AD at level 1 + AD per level x ( Current Level - 1)

So if Darius has zero items and zero runes and masteries, the most he can do with his ultimate at max rank is 600 true damage (with 5 stacks of Hemorrhage). No exception.