Did that thing just say it was its daddy's favourite? 

Heath was never his daddy's favourite. Neither was his sister. As a matter of fact, his father hated his children. Beating them, telling them how worthless they are. Heath's motivation for starting this whole superhero shindig was his abuse at the hands of his father. And now some ugly, evil, spoiled reptilian creature was saying how much its "daddy" loved it. How could anyone love such a horrifying thing?
"You'd be surprised how efficient Invisigirl's shields are, reptile. You'd better not try anything stupid when you talk."