Victorian Squid wrote:"Various and sundry" is a corruption or change over time from the phrase "All and sundry" which meant "everyone, individually and collectively". It dates back to Old English in origin, I think.
Some phrases persist because of the way they sound when being spoken, and I think that's why the altered and slightly less meaningful "various and sundry" has.
You forget to weigh in on whether or not it is a stupid phrase.
Pull list: Afterlife with Archie, Bodies, Chilling Adventures of Sabrina, Coffin Hill, Dead Boy Detectives, The Fade Out, The Goon, Harley Quinn, Hinterkind, Iron Fist: The Living Weapon,The Maxx Maximized, Miracleman, Ms. Marvel, Multiversity, Rasputin, Rocket Raccoon, Sandman: Overture, Silver Surfer, The Walking Dead, Wonder Woman