After Vayne's humiliating defeat in his Duelling League premiere, Roxis is determined to do better than his friend and rival. Granted, in a lower division, it's less of an achievement (and the alchemist is bound to remedy that with a championship), but Roxis is ready to get down to business, and the knight Frog is just the warmup needed. The retainer has... surprisingly little skills, being a poor slugger and sporting shoddy magical durability. His healing can easily be handled by Roxis' Chrona Drive, which will spread a deadly bevy of light rays to end this fight as soon as it starts. Roxis can't lose, even less so to a goddamned frog!
