I have been at Rhazin fusion for over a year, still need 3 champs that I cannot seem to come across. Raider, Spikehead, and Halberdier.  I probably did see them at some point but that was before I was aware of their fusion use.

So if anyone knows where they could be had I would appreciate that.  Yea, I know about "keep trying".  Or, yes, you get dozens of those all the time lol.