Random heals while attacking?

And you aren't wearing one of the special equips that healed a % of hp/mp when you killed a mob?


such as this (turns out it seems to be flat HP/MP not %):
http://www.basilmarket.com/MapleStory-it...-5004.html

i was thinking something like that, maybe a line on the weapon or something, but he said no lines., also, my DB has one of those, it looks just like that when it gets healed.