Sigh, more infighting? Can the heroes learn to be heroes and stop fighting each other every huge gathering? It's becoming like a Kamen Rider gathering tradition. :Rider sees other rider, glare at each other angrily, then fight ensues: "Ah, I see you still have it in you! good workout, lets go grab dinner now, hows the family?"
There really has got to be a way to introduce riders without them, "tricking the bad guy into thinking they hate each other" "think they're better than each other" "brainwashed into fighting each other."