User blog comment:FairyRaven/Fairy Tail Chapter 387: Tartarus Arc, Part 4: Father and Son, Review and Commentary/@comment-117.195.40.214-20140606183310

Hmmm, most people consider Silver to be a good guy, a sort of double agent. Could be something like Byakuya who wanted to kill Koga, the Ice Devil Slayer wants to kill E.N.D., but maybe E.N.D. can only be killed in its true form or whatever. Just a theory, though I myself don't like it... And I thought Mard was awesome right uptil the moment that Silver called his curse 'boring', which, imo, implies that Silver is stronger than him. Could turn out to be interesting if Silver is not a good guy, but wants to usurp Mard's position and fights him for it.

About people who thought the cover was Jellal... We all know Jellal is just Gray with his hair dyed blue, a weird tattoo on his face, wearing contact lenses and having more alert eyes. Oh, and his FT symbol wiped out. By day, a cool Ice Make mage. By night, a Heavenly Body Magic using vigilante! :P