INB4 Oro immune to sasori poison
No he isn't , idk where you people pulled that from, but its nowhere in the manga.... he's immune to his own poison and konoha poisons.....That was said
And sasori is stronger than him, Which is why pain made him the senior of the two, i would go into detail why, but i already did this many times,
Sasori vs Oro has been made several times, check search thread