Try to imagine him saying "Pretty" and "Delicious", like when Conquest fucked up Atom Eve and later tasted her blood. Listen to the "The Grand General - Swain Quotes" video I linked to help you imagine.
It fuckin' fits don't it? Now imagine him doing his first intro to Invincible, where he tells him why he's here on Earth and what preparations Mark has done to secure Earth for a Viltrumite take-over.
It fuckin' fits.