stop revive a old threed..I think takeing away Sasori's poison is a bit execive. His main weapon is literaly poison. It is like saying that Naruto can't use his Shadow Clones or Rasen Shuriken. I do however agree with Mei being able to defeat Sasori without his poison in an enclosed place like a cave mostly because she hardcounters him pretty bad. Stamina and numbers are next to Sasori, but with his limited arsenal of really lethal weapons(because otherwise he uses poison with them) just can't really deal the finishing blow. Mei would be pretty bloodied up after the fight and honestly Sasori could probably outsmart her. Sasori is the supperior strategist by far so it wouldn't be to supprising.