I am a massive fan of Beta stuff brought (back) into Warcraft, so you already have my bow axe sword vote. More than that, it's a really simple, pretty & useful effect, so I'm even more on board.
My only hang-up is the use of custom texture; I know what you said, but I'd be surprised if there wasn't something just as good in the MPQs; the tail end of the Graveyard ghost? Textures\firering6.blp? A magenta-ized Tornado.blp? Hmm.
Excellent work, man.