The Shadow Queen is the true main antagonist and final boss of the game Paper Mario: The Thousand-Year Door. She is an ancient, 1,000 year-old demon who once threw the world into the depths of terror.
There are roughly one-sh*t billion tropes so PLEASE look through them before adding one. Otherwise add what you like. ADDITION: PLEASE read through the trope description provided before submitting something. It's not a huge deal but too often people submit characters that don't fit just because they misinterpreted the title...
