I have always thought that fire should be SE against poison because when you look at pokémon like Koffing/Weezing, Grimer/Muk, Trubbish/Garbodor, you think "Man if I light this thing on fire it'll blow up (Koffing/Weezing) or catch on fire and faint quickly (Grimer/Muk/Trubbish/Garbodor) because...