Sadly, that was the most clever name I could come up with for a stained glass enemy. Notice how when he reflects your hammers, they are grey. That's because he's actually turning them into the hammers that MechaBouaphas throw! Less work than adding a new type of evil red hammer/ I'm very lazy. But also, it's good for the player, so they cam see the difference. I do think about these things sometimes you know! The best tip for fighting this guy is that he can't reflect anything but hammers.