[Autumn]

I don't think that you're severely hampered if you do not use the plain talent, typically people don't have everything they need to counter build you on the spot and usually counter builds only work against weapons that deal elemental damage anyway, given hitting a resist proc sucks with them.

Plain exists for privacy sake, like if you don't want someone seeing your build or even in some cases you don't want them equipping an isesipian charm if you had earth damage on hit.