Bug or feature? Damadd/Cele on Warden

[Nafets0805]

If i attack with Anytimer 34 Blunt the Level 50 Dummy without any Damadds, only Basebuffed i do 227 Damage.
Then with Heroismbuffs i do 255 Damage. All good. Then i cast my Pulsed Damadd i do only 245 Damage + round 24 Damadd. Now i cast my CL-damadd (Glinted Arms), then it adds round 9 dam, 245 Damage stays. Surge of chaos but now will not stack anymore. And now i puls my Cele: Damage drops to 224. And then i cast Speed of the fallen (Anarchyring) the Damage drops to 220. Why?

[Ebenezer]

Damage drops as you swing faster.

You still gain total damage over time, as it doesn't fall off as fast as your swing speed increases.