In your item, look where it sais "abilities - normal' or something to that extent, and add your ability there. And voila! your item will now have the ability you put on it when you click it.
Just so you know, ONLY the Blademaster and and Grom have the Bladestorm animations, so if another model uses it besides them, it won't show the animation and no red swirly thing around the hero.
Finally finding about some of the bots that are flooding the users online - bytespider apparently is a huge offender here - ignores robots.txt and comes in from a ton of different IPs
Ghan has said he has fixed this. Monovertex please confirm this fix. This was only a problem with people that had signatures in the upper levels like not the special members but the respected members.