orochimaru doesnt need edo to beat sasori. as long as chiyo and sakura survived without a single scratch until damn near the end, and you're telling me oro can't do the same? oro has substitutions, summons, wind release, leech all creation, kusanagi and more. His fighting style is more than enough to take on sasori. he doesn't need to be immune to poison. sasori has, quite frankly, only beaten a kazekage (off guard mind you). the rest he killed were fodder. oro has killed a kazekage and a hokage. And i'll restate, oro does NOT need edo to beat sasori. Manda + oro would be hard enough for sasori, even with his black sand. please stop this debate. orochimaru was planning on killing sasori at the bridge ANYWAY WITHOUT a fully healthy body. sasori only knows of oro's techs up until the time oro left. kabuto was no longer a loyal spy so there was most likely a lack of legit info being passed to sasori. 8-Branch technique, HELLO lol sorry. sasori loses. the only person sasori could beat from akatsuki is hidan probably