@Rito: Is Runeglaive supposed to turn the triggering attacking purely into magic damage?
When I first heard of this it sounded like a glitch to me, since Lich Bane doesn't function this way, nor does it allow basic attacks to trigger spell effects. The only reason I'm not convinced that it's a glitch is the fact that monsters don't have magic resist, and even that's a bit weak a reason to code Runeglaive this way.