@Redice The cringe villain can't do anything without the Turtle's Core, but if they went for him and left the core alone, you can't tell what he could do, especially since he still had control over the familiars inside the turtle.
@theShear Yes, finally! It started as a nice and intriguing mystery, revolving around the disappearance of the three heroes, but it dragged on for too long and turns out their disappearance wasn't important to the plot, they were just put on a bus for this arc.
Shield Hero is at its best when it revolves around the difference in treatment the other three have, how that creates conflict among them and seeing the residents of the world trying to make them come together. This arc introduced a villain at the end of its run, placed the other world's three heroes as a vehicle for exposition and promptly made them irrelevant again. I don't feel any emotional investment in defeating this villain, I'm just glad the costume girl got her moment to shine, but I don't think this was the correct way to do it.
Long story short, this arc sucks!