Have you been playing the game at all???? The Deluge episode introduced the Mera Style as the Vendor set, and the Assassin Time Capsule has the Black Manta Iconic Abyssal style. Episodes 24, 25, 26 contains the Firestorm Iconic style as drops, and the flaming hair can be had in the Elite version of the set. Batman's Rebirth Emblem and the Flash emblem both came out in Time Capsules last year (the Batman one is in the Gotham Time Capsule, I forget which capsule has the Flash emblem). Wonder Woman's emblem was given for free on two separate Summer occasions...you might want to check your redeem tab. And as velvetsanity has pointed out, you can buy the Flash Cowl directly in the Marketplace, no RNG involved and available to all of your toons. You might want to actually play the game and pay a little attention, your requests have already been granted.