Why do some runes have a version with an asterisk at the end of the name? As far as I can tell, there's no difference between the asterisk version and the un-asterisked version.
They're leftovers from the old free deck, I believe. * runes are untradable, and it's a bug that you can get them from packs and such. There's plans to fix this, but it's a pretty big problem to resolve this, code-wise.
