[He's silent for a moment. When he speaks, it's with the quiet weight of remembering the worst of nightmares.]

I can't prove it to you - I pray I'm never able to - but Unicron is real. A few of us have faced and fought him and his hordes. It's . . . not something I care to ever repeat. Or would wish on anyone else. If it's true that the Miasma comes from him somehow, nothing good can come from it.