I wonder what you'd make of me..
A very polite, coffee-sipping extraterrestrial shapeshifter who uses corporate lingo and wears fancy suits before devouring those who try to stand in your way.
The only weakness you have is that your shapeshifting powers fade when you taste something you hate, such as when you forget to put sugar in your coffee. One sip of that and you risk exposing your whole planet and getting locked up for research on extraterrestrial life forms.