They fight in an arena that has parts that are pitch black and parts that are lit by artificial light. Riddick has on a a pair of Blue Blocker shades that adjusts to the variance.
Who wins?
KIN
KingD19Shai-Gen's Enigmatic Wong
Any version of Riddick is more powerful than Bane. Faster than Bane. More skilled than Bane. And much more ruthless than Bane.