think about it. hot plasma melts a lot of things, cold plasma would be able to do things that hot plasma couldnt do because of the temperature of it. electronics for instance. what use does cold flame have? it is in tpt though.
and then the noble gas will produce hot plasma next time it is sparked, and I just explained why it is a bad/useless idea to give gasses the ability to conduct electricity.
I'm sure we're already happy with MERC just the way it is, and we really don't need any changes to it whatsoever.