Ideas for new Grievous Wounds items

http://imgur.com/bGpo8Hx I would call it Wicked Flamberge. +40% Attack Speed +40 AD Unique Active: For 3 seconds, your basic attacks deal an additional 35 Magic Damage over 5 seconds and apply Grievous Wounds for the duration of the debuff.

Build Path: + + + 925 gold. End cost: 2700 gold.

If anyone has any questions or suggestions, I'd love to hear them. I'd also like to hear any item ideas of your own.

Note: I've never designed an item before, so this may or may not be a balanced example. It's more of a concept than anything, so constructive feedback is very welcome. Try to keep "lol no" type comments to yourself unless you can follow it up with a better idea. :)