Originally Posted by Fat Gaburaisu
The probably should have just kep the old Gen 1 typing matchup with that one - keeping Poison super effective against bug. I seriously thought it still was until I played BW and had a rude awakening.
It would had been nice if it did since poison is now only good against Grass and it doesn't help that most Grass types (in Gen 1 anyways) are part Poison. Not to mention poison can't do anything on steel types which is a popular defensive type. With a strength over bug it would give poison a bit of a niche, being able to switch into Heracross and pretty much kill it from there. Bug/Steel would still be a pain though.
I don't get why Bug was super effective against Poison in Gen 1. Maybe I'm just thinking bugs eating pesticides instead of bugs eating everything. I dunno.