Snagged from Thottbot:
Quote:
To fuse them you just equip jang'thraze and have sang'thraze in your bags. Right-click jang'thraze and it will casting a spell ( only takes like 5-10 secs if i remember but it feels like FoReVeR!!! when your actually doing it)This means you can fuse if you are a pally (i heard this guy wondering if pally could fuse because they can't DW).
Also, everyone cheeses their shorts over this weapon, which I really don't understand. @_@