That a rune arm is not an orb? And a short sword is not a short bow. And an Elf is not a Dwarf. Apples are not oranges.
These are also simple questions that are not,
specifically, covered
anywhere in the Wild, Wild Web. And yet, people have survived without this information being publicly available. How?...
(I'm one of many Wiki editors - where would you like to see this critical clarification? How would you like it worded, so it's
not considered condescending? Most importantly, how many other, similar, clarifications would you consider necessary? Please, just let me know.) (</jk>)
Edit: Okay - I apologize for my own confusion and my reaction to that. But only you can clear that up, so a serious question - how did you get the impression that a Rune Arm might be an Orb? Seriously - is the wiki misleading on this subject???