User blog comment:EvanDude345rv5/Fairy Tail Chapter 358 Review : Magical Barrier Particles/@comment-117.227.52.242-20131103003505/@comment-7418318-20131104000954

And how do you define "normal poison"?

Or for that matter where did you get that "information" about Mira only being resistant to normal poison from?

All we have to base any theories on is her like "Poison is a treat for Demons". She didn't say "this kind of poison" or "normal poison" or "such weak poison" or any other qualifier. She just made it a general statement, so where does this theory come from?

And while we're at it, please quote me the line that states that Cobra is immune against any and all kinds of poison.