Obi-WanLebowski

$16.24 from bullmoose music. I doubt you'll find it much cheaper anywhere. http://www.bullmoose.com/p/22121474/rik-hoskin-brandon-sandersons-white-sand-volume-1

All of the planets existed before any shardholders showed up actually. http://www.theoryland.com/intvmain.php?i=700#3

Has anything actually been verified as a Voidbringer yet?

I haven't dug too deep into this theory so I doubt it holds much credence, but I can't think of anything in the Cosmere that screams "Voidbringer" more than Nightblood.