Pretty neat episode. Rockman finally had to think to defeat an enemy, rather than rely on his transformation to win. Which reminds me, Rockman finally had a long duration fighting in a transformation! He never even got to use the Star Force transformations for more than one or two attacks, but he was swinging his sword and firing off Thunder Slashes left and right, that was great. Also loved that Amachi and Goyoda had to help in order for Rockman to win, showing that the other characters still matter, even in Tribe. What happened to Harp Note, anyway? One attack from Empty and she was out of the rest of the episode.
Next episode preview shows Subaru and Misora hanging with Solo, in a matter of sorts. That looks promising.